{"id":2642,"date":"2015-11-15T16:00:18","date_gmt":"2015-11-15T07:00:18","guid":{"rendered":"https:\/\/regex.info\/blog\/2015-11-15\/2642"},"modified":"2015-11-15T16:00:18","modified_gmt":"2015-11-15T07:00:18","slug":"mini-review-skilhunt-h02r-head-mounted-flashlight-for-cycling-after-dark","status":"publish","type":"post","link":"https:\/\/regex.info\/blog\/2015-11-15\/2642","title":{"rendered":"Mini Review: Skilhunt H02R Head Mounted Flashlight, For Cycling after Dark"},"content":{"rendered":"\n\n<p>This <a href='http:\/\/xkcd.com'>xkcd<\/a> comic came out today with perfect timing:<\/p>\n\n<div class='ic'><a href='http:\/\/xkcd.com\/1603\/'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/s\/xkcd_1603_flashlights.png\" width=\"690\" height=\"253\"\nid=\"iflashlights\"\/><\/a>\n<br\/><span class='caption'>Today's xkcd Comic<\/span>\n<br\/>perfectly appropriate for today's blog post\n<meta itemprop='about' content=\"Today's xkcd Comic perfectly appropriate for today's blog post\"\/><\/div>\n\n<p>Last month I was contacted by <a href='http:\/\/www.gearbest.com\/'>GearBest<\/a> and asked whether I'd like to do <span class='nobr'>a review<\/span> of <span class='nobr'>a\nproduct<\/span> from their <a href='http:\/\/www.gearbest.com\/bicycling-gear-c_11278\/'>cycling gear<\/a> or <a\nhref='http:\/\/www.gearbest.com\/led-lights-c_11264\/'>LED lights<\/a> categories; I'd get to keep the product in exchange for an\nunbiased review. Probably they'd seen <a href='\/blog\/2015-09-14\/2617'>my headphone review<\/a> done under similar\ncircumstances. <span class='nobr'>I get this<\/span> kind of message every so often and don't usually accept, but <span class='nobr'>a bicycle<\/span> light piqued my interest.<\/p>\n\n<p>I chose to try out a small, $50 head-mounted light that <span class='nobr'>I thought<\/span> might\nbe useful for nighttime riding:<\/p>\n\n<div class='ic tight'><a href='http:\/\/www.gearbest.com\/led-flashlights\/pp_131034.html'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/s\/skilhunt-H02R.jpg\" width=\"556\" height=\"412\"\nid=\"iskilhunt_H02R\"\/><\/a>\n<br\/>Skilhunt H02 R + Included Headband\n<meta itemprop='about' content=\"Skilhunt H02 R + Included Headband\"\/><\/div>\n\n<p>The flashlight easily separates from the bundled blue and yellow headband, so you can use the flashlight around the house or\nout and about as <span class='nobr'>a normal<\/span> handheld flashlight.<\/p>\n\n\n<div class='ic tight'><a href='http:\/\/www.gearbest.com\/led-flashlights\/pp_131034.html'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/s\/skilhunt-H02R.png\" width=\"556\" height=\"327\"\nid=\"iskilhunt_H02Rx2\"\/><\/a>\n<br\/>Skilhunt H02 R\n<meta itemprop='about' content=\"Skilhunt H02 R\"\/><\/div>\n\n\n<p><span class='nobr'>It's quite<\/span> small... <span class='nobr'>a bit<\/span> longer than the palm of my hand is wide, and about as\nthick around as my thumb. Unlike <span class='nobr'>a traditional<\/span> flashlight, the beam comes out from the body at <span class='nobr'>a right<\/span> angle.<\/p>\n\n<p style='margin:30px auto; font-size:105%'>It is <i>ridiculously<\/i> bright for its size.<\/p>\n\n<p>After <a href='\/blog\/2015-11-13\/2640'>dinner with Carlin<\/a> the other evening, <span class='nobr'>I stopped<\/span> by the grounds of\nthe Kyoto Imperial Palace Park, which can be very dark at night, and snapped some comparison photos. Mouse over the\nbuttons below the photo to see the same scene illuminated with the flashlight's four levels of brightness:<\/p>\n\n\n<div class='ic' style='position:relative; margin-bottom:20px'>\n<div id='img139_1'  style='visibility:visibile; margin:0; width:100%'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06621_sm.jpg\" width=\"690\" height=\"472\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06621\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n<meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06621_sm.jpg'\/>\n<meta itemprop='creator' content='Jeffrey Friedl'\/>\n<meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n<meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n\n<\/div>\n<div id='img139_2'  style='visibility:hidden; margin:0; width:100%;position:absolute; left:0; top:0'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06620_sm.jpg\" width=\"690\" height=\"472\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06620\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n<meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06620_sm.jpg'\/>\n<meta itemprop='creator' content='Jeffrey Friedl'\/>\n<meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n<meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n<\/div>\n<div id='img139_3'  style='visibility:hidden; margin:0; width:100%;position:absolute; left:0; top:0'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06622_sm.jpg\" width=\"690\" height=\"472\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06622\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n<meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06622_sm.jpg'\/>\n<meta itemprop='creator' content='Jeffrey Friedl'\/>\n<meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n<meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n<\/div>\n<div id='img139_4'  style='visibility:hidden; margin:0; width:100%;position:absolute; left:0; top:0'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06623_sm.jpg\" width=\"690\" height=\"472\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06623\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n<meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06623_sm.jpg'\/>\n<meta itemprop='creator' content='Jeffrey Friedl'\/>\n<meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n<meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n<\/div>\n<div id='img139_5'  style='visibility:hidden; margin:0; width:100%;position:absolute; left:0; top:0'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06624_sm.jpg\" width=\"690\" height=\"472\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06624\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n<meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06624_sm.jpg'\/>\n<meta itemprop='creator' content='Jeffrey Friedl'\/>\n<meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n<meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n<\/div>\n\n<\/div>\n\n<style type=\"text\/css\">\nspan.b139 { padding: 6px; border: gray 1px solid }\nspan.sb { font-size: 80% }\n<\/style>\n<center>\n  <span class='b139' id='but139_1' onmouseover='OnMouse139(1)' style='border-color: red'>&nbsp;&nbsp;Off&nbsp;&nbsp;<\/span>\n &nbsp;&nbsp;&nbsp; <span class='b139' id='but139_2' onmouseover='OnMouse139(2)'>Low <span class='sb'>&middot; 5 lumens<\/span><\/span>\n &nbsp;&nbsp;&nbsp; <span class='b139' id='but139_3' onmouseover='OnMouse139(3)'>Medium <span class='sb'>&middot; 120 lumens<\/span><\/span>\n &nbsp;&nbsp;&nbsp; <span class='b139' id='but139_4' onmouseover='OnMouse139(4)'>High <span class='sb'>&middot; 400 lumens<\/span><\/span>\n &nbsp;&nbsp;&nbsp; <span class='b139' id='but139_5' onmouseover='OnMouse139(5)'>Turbo <span class='sb'>&middot; 860 lumens<\/span><\/span>\n\n  <p>\n  <small>mouseover <span class='nobr'>a button<\/span> to see that image<\/small>\n  <\/p>\n<\/center>\n\n<script type=\"text\/javascript\">\n\/\/<![CDATA[\n var img139 = new Array();\n var but139 = new Array();\n\nimg139[1] = document.getElementById('img139_1');\nbut139[1] = document.getElementById('but139_1');\nimg139[2] = document.getElementById('img139_2');\nbut139[2] = document.getElementById('but139_2');\nimg139[3] = document.getElementById('img139_3');\nbut139[3] = document.getElementById('but139_3');\nimg139[4] = document.getElementById('img139_4');\nbut139[4] = document.getElementById('but139_4');\nimg139[5] = document.getElementById('img139_5');\nbut139[5] = document.getElementById('but139_5');\n\n\n function OnMouse139(num)\n {\n   img139[num].style.visibility      = 'visible';\n   but139[num].style.borderColor     = '#FF4040';\n   but139[num].style.backgroundColor = '#808080';\n   but139[num].style.color           = 'white';\n   but139[num].style.borderWidth     = '3px';\n   but139[num].style.padding         = '4px';\n\n   for (i = 1; i < 6; i++) {\n      if (i != num) {\n          img139[i].style.visibility    = 'hidden';\n          but139[i].style.borderColor     = 'gray';\n          but139[i].style.backgroundColor = '';\n          but139[i].style.borderWidth     = '1px';\n          but139[i].style.padding         = '6px';\n          but139[i].style.color           = '#888';\n      }\n   }\n }\n\/\/]]>\n<\/script>\n\n<p>The five pictures are all calibrated to the same exposure, and accurately represent the experience in real life.<\/p>\n\n<p><b>Off<\/b> shows the darkness without the light. <span class='nobr'>I would<\/span> not take the chance trying to walk on that path without some kind\nof light.<\/p>\n\n<p>The low setting (5 lumens), which hardly makes <span class='nobr'>a dent<\/span> in the scene above, is appropriate for reading or in\n<span class='nobr'>a tent<\/span> or other close-in situations where you prefer not to blind yourself. Even at this lowest setting, though, take care not to\nlook directly into the LED, because is bright enough to be physically painful, as my personal testing for this review reveals. <span class='nobr'><span class='QO'>&#8220;<\/span>5\nlumens<span class='QC'>&#8221;<\/span><\/span> sounds dim to me, but this lowest level is plenty bright even for walking around.<\/p>\n\n<p>The next brightness level, the 120 lumens of <span class='QO'>&#8220;<\/span>medium<span class='QC'>&#8221;<\/span>, is probably brighter than any triple-D-cell flashlight <span class='nobr'>I had<\/span> growing\nup. <span class='nobr'>It's more than<\/span> appropriate for walking or, I'm sure, hiking. <span class='nobr'>It's phenomenally<\/span> astounding to me how bright one tiny\nlittle LED can be. Technology is amazing.<\/p>\n\n<p>The final two brightness levels, high and turbo, are just more of the same (400 and 860 lumen respectively), and perhaps are\nless important for walking or hiking than for search-and-rescue, but as I'll get to in <span class='nobr'>a bit,<\/span> <span class='nobr'>I think<\/span> they're important for\ncycling.<\/p>\n\n<hr align='left' width='25%'\/>\n\n<p>Now that I've made the basic introduction, let me make it clear that I'm no expert in lights, cycling, or the combination\nthereof, so take this review with that grain of salt.<\/p>\n\n<p><b>Battery<\/b><\/p>\n\n<p>This flashlight can take three kinds of battery (one <span class='QO'>&#8220;<\/span><a\nhref='https:\/\/en.wikipedia.org\/wiki\/List_of_battery_sizes#Cylindrical_lithium-ion_rechargeable'>18650<\/a><span class='QC'>&#8221;<\/span>, two <span class='QO'>&#8220;<\/span><a\nhref='https:\/\/en.wikipedia.org\/wiki\/List_of_battery_sizes#Camera_batteries'>CR123<\/a><span class='QC'>&#8221;<\/span>, or two <span class='QO'>&#8220;<\/span>RCR123<span class='QC'>&#8221;<\/span>), none of which I'd ever\nheard of before. <span class='nobr'>All seem to<\/span> be at least not uncommon for use in flashlights. The <span class='QO'>&#8220;<\/span>18650<span class='QC'>&#8221;<\/span> is apparently used in Tesla cars.<\/p>\n\n<p>The flashlight didn't come with <span class='nobr'>a battery,<\/span> so <span class='nobr'>I bought<\/span> <a href='http:\/\/www.amazon.co.jp\/gp\/product\/B00Y2FGAW6\/'>this 3500mAh\nrechargable <span class='QO'>&#8220;<\/span>18650<span class='QC'>&#8221;<\/span> and recharger<\/a> for about $25. Judging by the limited research <span class='nobr'>I did<\/span> on Amazon, there's quite <span class='nobr'>a range<\/span> in\npower capacity among <span class='QO'>&#8220;<\/span>18650<span class='QC'>&#8221;<\/span> batteries. <span class='nobr'>I noticed<\/span> claimed capacity ranging from 1500 mAh to 4000 mAh. <span class='nobr'>The one I<\/span> bought had the\nlargest capacity among batteries that didn't look to me like cheap, dangerous rip-offs. With modern batteries, you do not want to\ntake chances with inferior quality.<\/p>\n\n<p><b>Head-Mounted Light<\/b><\/p>\n\n<p>The flashlight is small, and the combined weight of the flashlight, battery, and head-mount band is not appreciable while\nwearing. <span class='nobr'>I found<\/span> it <span class='nobr'>a bit<\/span> more comfortable to wear over <span class='nobr'>a cycling<\/span> cap than on my bare head. <span class='nobr'>In either<\/span> case, my helmet fit\nover top.<\/p>\n\n<p>Even in the limited testing I've done, I've found definite pros and cons to using head-mounted lighting. <span class='nobr'>So far I<\/span>'ve tried it on two night outings:\n<a href='https:\/\/www.strava.com\/activities\/425025521'>the first<\/a> was <span class='nobr'>a 20km<\/span> ride that was about half\nthrough city, and half along <span class='nobr'>a spooky<\/span> river-side path of oft-changing quality, and <a href='https:\/\/www.strava.com\/activities\/430740656'>the second<\/a> was the aforementioned visit to the dark park where <span class='nobr'>I took<\/span>\nthe photos above, and then the subsequent ride home through the city.<\/p>\n\n<p>Pros, head-mounted compared to bike-mounted:<\/p>\n<ul><li><p>You control where the light shines. Want to see something off to the side or further afield or closer in front? Just point\nyour head where you want it. Huge benefit that trumps all cons.<\/p><\/li>\n<li><p>Can move your head side to side slightly to create movement in shadows that helps\ndecipher the 3D nature of the scene, such as rocks and ruts in the path.<\/p><\/li>\n<li><p>Stays with you while off the bike.<\/p><\/li>\n<li><p>Controls, being at the front of your head, are always easy to find.<\/p><\/li>\n<\/ul>\n\n<p>Cons, head-mounted compared to bike-mounted:<\/p>\n\n<ul>\n<li><p>The source of light next to your eyes can exacerbate the hazy effect of fog,\nand bugs that happen to be flying by that are suddenly illuminated inches in front of\nyour eye can scare the bejesus out of you.<\/p><\/li>\n\n<li><p>While stopped at a traffic light, or other time you're not actively using the light\nto see, you have to take care not to absentmindedly shine it in people's faces as you\nwait.<\/p><\/li>\n\n<li><p>The light source near your eyes creates <span class='nobr'>a mostly<\/span> shadow-less view, which makes it\nmore difficult to gauge the 3D nature of the scene (though as noted above <span class='nobr'>a slight<\/span>\nswaying of the head can remedy that).<\/p><\/li>\n\n<li><p>Probably looks silly unless you're climbing out of <span class='nobr'>a cave.<\/span><\/p><\/li>\n\n<\/ul>\n\n\n<p><b>Use for Cycling<\/b><\/p>\n\n<p>The relatively-low 120-lumen power mode is more than enough for walking or jogging,\nbut for the higher speeds of cycling you need to be able to see further ahead in time,\nwhich means seeing further ahead in distance, so the brighter the better.<\/p>\n\n<p>Riding along the dark riverside path from Osaka, which sometimes is really nice pavement\nand other times pockmarked mud, <span class='nobr'>I felt fine<\/span> doing 30kph (20mph) with the light at full 860-lumen\npower.<\/p>\n\n<p>Here are two more examples of the light at full power:<\/p>\n\n<div class='ic' style='position:relative; margin-bottom:20px'>\n\n   <div id='img824_1'  style='visibility:visibile; margin:0; width:100%'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06630_sm.jpg\" width=\"690\" height=\"458\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06630\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n   <meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06630_sm.jpg'\/>\n   <meta itemprop='creator' content='Jeffrey Friedl'\/>\n   <meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n   <meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n   <\/div>\n   <div id='img824_2'  style='visibility:hidden; margin:0; width:100%;position:absolute; left:0; top:0'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06631_sm.jpg\" width=\"690\" height=\"458\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06631\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n   <meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06631_sm.jpg'\/>\n   <meta itemprop='creator' content='Jeffrey Friedl'\/>\n   <meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n   <meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n   <\/div>\n\n<\/div>\n\n<style type=\"text\/css\">\nspan.b824 { padding: 6px; border: gray 1px solid }\n<\/style>\n<center>\n  <span class='b824' id='but824_1' onmouseover='OnMouse824(1)' style='border-color: red'>Off<\/span>\n &nbsp;&nbsp;&nbsp;&nbsp; <span class='b824' id='but824_2' onmouseover='OnMouse824(2)'>Turbo<\/span>\n\n  <p>\n  <small>mouseover <span class='nobr'>a button<\/span> to see that image<\/small>\n  <\/p>\n<\/center>\n\n<script type=\"text\/javascript\">\n\/\/<![CDATA[\n var img824 = new Array();\n var but824 = new Array();\n\nimg824[1] = document.getElementById('img824_1');\nbut824[1] = document.getElementById('but824_1');\nimg824[2] = document.getElementById('img824_2');\nbut824[2] = document.getElementById('but824_2');\n\n\n function OnMouse824(num)\n {\n   img824[num].style.visibility      = 'visible';\n   but824[num].style.borderColor     = '#FF4040';\n   but824[num].style.backgroundColor = '#808080';\n   but824[num].style.color           = 'white';\n   but824[num].style.borderWidth     = '3px';\n   but824[num].style.padding         = '4px';\n\n   for (i = 1; i < 3; i++) {\n      if (i != num) {\n          img824[i].style.visibility    = 'hidden';\n          but824[i].style.borderColor     = 'gray';\n          but824[i].style.backgroundColor = '';\n          but824[i].style.borderWidth     = '1px';\n          but824[i].style.padding         = '6px';\n          but824[i].style.color           = '#888';\n      }\n   }\n }\n\/\/]]>\n<\/script>\n\n<div class='ic' style='position:relative; margin-bottom:20px'>\n  <div id='img545_1'  style='visibility:visibile; margin:0; width:100%'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06632_sm.jpg\" width=\"690\" height=\"446\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06632\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n  <meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06632_sm.jpg'\/>\n  <meta itemprop='creator' content='Jeffrey Friedl'\/>\n  <meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n  <meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n\n  <\/div>\n  <div id='img545_2'  style='visibility:hidden; margin:0; width:100%;position:absolute; left:0; top:0'><div style='margin-top:0; margin-bottom:0' class='ic' itemscope itemtype='http:\/\/schema.org\/Photograph'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JF100_06633_sm.jpg\" width=\"690\" height=\"446\"\nalt=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\nid=\"i06633\"\ntitle=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/>\n  <meta itemprop='url' content='http:\/\/regex.info\/i\/JF100_06633_sm.jpg'\/>\n  <meta itemprop='creator' content='Jeffrey Friedl'\/>\n  <meta itemprop='copyrightHolder' content='Jeffrey Friedl'\/>\n  <meta itemprop='dateCreated' content='2015-11-11'\/>\n<meta itemprop='about' content=\"Kyoto Imperial Palace Park (\u4eac\u90fd\u5fa1\u6240\u516c\u5712) -- Kyoto, Japan -- Copyright 2015 Jeffrey Friedl, https:\/\/regex.info\/blog\/ -- This photo is licensed to the public under the Creative Commons Attribution-NonCommercial 4.0 International License http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/ (non-commercial use is freely allowed if proper attribution is given, including a link back to this page on http:\/\/regex.info\/ when used online)\"\/><\/div>\n  <\/div>\n\n<\/div>\n\n<style type=\"text\/css\">\nspan.b545 { padding: 6px; border: gray 1px solid }\n<\/style>\n<center>\n  <span class='b545' id='but545_1' onmouseover='OnMouse545(1)' style='border-color: red'>Off<\/span>\n &nbsp;&nbsp;&nbsp;&nbsp; <span class='b545' id='but545_2' onmouseover='OnMouse545(2)'>Turbo<\/span>\n\n  <p>\n  <small>mouseover <span class='nobr'>a button<\/span> to see that image<\/small>\n  <\/p>\n<\/center>\n\n<script type=\"text\/javascript\">\n\/\/<![CDATA[\n var img545 = new Array();\n var but545 = new Array();\n\nimg545[1] = document.getElementById('img545_1');\nbut545[1] = document.getElementById('but545_1');\nimg545[2] = document.getElementById('img545_2');\nbut545[2] = document.getElementById('but545_2');\n\n\n function OnMouse545(num)\n {\n   img545[num].style.visibility      = 'visible';\n   but545[num].style.borderColor     = '#FF4040';\n   but545[num].style.backgroundColor = '#808080';\n   but545[num].style.color           = 'white';\n   but545[num].style.borderWidth     = '3px';\n   but545[num].style.padding         = '4px';\n\n   for (i = 1; i < 3; i++) {\n      if (i != num) {\n          img545[i].style.visibility    = 'hidden';\n          but545[i].style.borderColor     = 'gray';\n          but545[i].style.backgroundColor = '';\n          but545[i].style.borderWidth     = '1px';\n          but545[i].style.padding         = '6px';\n          but545[i].style.color           = '#888';\n      }\n   }\n }\n\/\/]]>\n<\/script>\n\n<p>The temple building and trees in the last example are about 45m~50m away (150' ~ 165' away),\nwhich is almost six seconds away at 30kph.<\/p>\n\n<p>Back to my experience on the riverside path, <span class='nobr'>I could<\/span> use the lower power modes when the pavement\nwas better, but <span class='nobr'>I didn't<\/span> feel comfortable to go 30kph... <span class='nobr'>I needed<\/span> to be able to inspect the road surface\nclearly as <span class='nobr'>I went,<\/span> and for this <span class='nobr'>I wanted<\/span> the brightest light possible.<\/p>\n\n<p>Unfortunately, the claimed battery life at the brightest <span class='QO'>&#8220;<\/span>turbo<span class='QC'>&#8221;<\/span> setting is only one hour, which may put <span class='nobr'>a crimp<\/span> on an all-night\nmountain-path ride. The 400-lumen <span class='QO'>&#8220;<\/span>high<span class='QC'>&#8221;<\/span> setting is rated at three hours. Running and hiking would be no problem, <span class='nobr'>I think,<\/span> as the\n120-lumen <span class='QO'>&#8220;<\/span>medium<span class='QC'>&#8221;<\/span> mode has <span class='nobr'>a claimed<\/span> battery life of 11 hours. (The lowest 5-lumen mode has <span class='nobr'>a claimed<\/span> battery life of five\n<i>days<\/i>.)<\/p>\n\n<p>They don't specify what capacity battery was used to come up with these numbers. <span class='nobr'>As I noted<\/span> earlier, <span class='nobr'>I found<\/span> <span class='nobr'>a huge<\/span> range in\nbattery capacities (1500 mAh to 4000 mAh), so I'd expect the same range in how long one can use the light. <span class='nobr'>I wish they<\/span>'d\nhave mentioned the battery capacity that the claimed battery life applies to.<\/p>\n\n<p><b>The Purpose of Lights while Cycling<\/b><\/p>\n\n<p>I don't ride much at night except for short jaunts around the city, and as such <span class='nobr'>I usually<\/span> don't need\nlights <i>to see<\/i>, but instead <i>to be seen<\/i>,\nso for normal cycling day or night <span class='nobr'>I use<\/span> bike-mounted lights on both the front and rear. <span class='nobr'>On the front<\/span> <span class='nobr'>I use<\/span> a\n<a href='http:\/\/www.amazon.com\/dp\/B007PSIA8O\/'>Knog <span class='QO'>&#8220;<\/span>Blinder<span class='QC'>&#8221;<\/span> front 4-LED square<\/a>,\nand on the rear a\n<a href='http:\/\/www.amazon.com\/dp\/B00D2V4EXS\/'>Knog <span class='QO'>&#8220;<\/span>Blinder<span class='QC'>&#8221;<\/span> rear 4-LED strip<\/a>. These are extremely bright\nfrom the <span class='QO'>&#8220;<\/span>be seen<span class='QC'>&#8221;<\/span> point of view, but provide almost nothing in the way of path illumination.<\/p>\n\n<p>A nice feature of these Knog Blinders is that they're rechargeable, and recharge via <span class='nobr'>a normal<\/span> USB plug.\nThat means that <span class='nobr'>I can<\/span> recharge them on very long rides via  <a href='http:\/\/www.amazon.co.jp\/gp\/product\/B00P8TDWUI'>the\nsmall backup battery<\/a> that <span class='nobr'>I use<\/span> to recharge my phone on the go. They last <span class='nobr'>a long<\/span> time on one charge, so <span class='nobr'>I don't<\/span> often need\nto recharge them on the go, but it's comforting to know <span class='nobr'>I won't<\/span> be stuck in <span class='nobr'>a long<\/span> tunnel without <span class='nobr'>a tail<\/span> light.<\/p>\n\n<p>I also have a <a href='http:\/\/www.amazon.com\/gp\/product\/B00MOWQRCC'>Pedallon LED 100-Lumen Rear Bike Light<\/a>\nthat <span class='nobr'>I bought<\/span> over the summer for $18 (now on sale at Amazon for $13, or the physically same\nproduct <a href='http:\/\/www.gearbest.com\/headlights\/pp_228479.html'>at GearBest<\/a> for $10). <span class='nobr'>It's very bright<\/span>\n(in the <span class='QO'>&#8220;<\/span>to be seen<span class='QC'>&#8221;<\/span> sense), but <span class='nobr'>I found<\/span> the controls <span class='nobr'>a bit<\/span> over complicated, and the battery didn't last\nas long as the (twice-the-price) Knog Blinder. <span class='nobr'>I tend to<\/span> take long rides, so <span class='nobr'>I prefer<\/span> the Knogs.<\/p>\n\n<p>Speaking of controls, the controls for the this Skilhunt H02R flashlight are simple and easy to remember. <span class='nobr'>It has one<\/span> button. When you press to turn it on, <span class='nobr'>a short<\/span> click turns it on to the power level it was last at,\nwhile <span class='nobr'>a half<\/span>-second press turns it on to the dimmest 5-lumen mode, which is really convenient when you want to make\nsure you don't blind yourself when turning it on to look at <span class='nobr'>a map.<\/span> Turning it on via <span class='nobr'>a double<\/span>-click on the button\nputs it immediately into turbo mode.<\/p>\n\n<p>Double-clicking while it's on puts it into <span class='nobr'>a seizure<\/span>-inducing turbo-flash mode. <span class='nobr'>A half<\/span>-second press turns it off. <span class='nobr'>A normal<\/span> click while it's on, of course, cycles through the power levels.<\/p>\n\n<p><b>Aside: Modern Reflexive Material<\/b><\/p>\n\n<p>In addition to being astounded at the brightness of <span class='nobr'>a modern<\/span> flashlight, <span class='nobr'>I was also<\/span> amazed at modern reflective material.\nThese days lots of running clothes come with little design flourishes of reflective material... perhaps just <span class='nobr'>a few<\/span>\nsquares the size of <span class='nobr'>a fingernail<\/span> arranged in some kind of decorative pattern. <span class='nobr'>I thought<\/span> these were marketing hype,\nwith little value for safety, but <span class='nobr'>I was<\/span> very wrong.<\/p>\n\n<p>While riding down the dark riverside path, folks wearing clothes with these little fingernail-sized patches of reflective\nmaterial were visible from <i>very<\/i> far away, and with the movement of their body highlighting their presence even more. Tiny\nfragments of reflective piping in the shoes, or <span class='nobr'>a small<\/span> tag on <span class='nobr'>a sleeve,<\/span> etc., were impossible to not notice 20 or 30 seconds\nahead of time. <span class='nobr'>It was astounding<\/span>.<\/p>\n\n<p>Most folks out running in the dark had at least something reflective on them, but some folks, notably elderly folks out for <span class='nobr'>a\nwalk,<\/span> were generally wearing black and were invisible until bathed in the direct illumination of the flashlight.<\/p>\n\n<p>From now on, I'll put much more stock in reflective flourishes when shopping for clothes and gear.<\/p>\n\n\n<p><b>Summary<\/b><\/p>\n\n<p>All in all it's a great flashlight with <span class='nobr'>a size<\/span>\/price\/brightness combination that <span class='nobr'>I find<\/span> to be amazing. <span class='nobr'>If I lose<\/span> it, <span class='nobr'>I would<\/span> spend my own money to buy another.<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>This xkcd comic came out today with perfect timing:<\/p> <p>Last month I was contacted by GearBest and asked whether I'd like to do a review of a product from their cycling gear or LED lights categories; I'd get to keep the product in exchange for an unbiased review. Probably they'd seen my headphone review done under similar circumstances. I get this kind of message every so often and don't usually accept, but a bicycle light piqued my interest.<\/p> <p>I chose to try out a small, $50 head-mounted light that I thought might be useful for nighttime riding:<\/p> <p>The flashlight easily [...]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,1,4],"tags":[],"_links":{"self":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/posts\/2642"}],"collection":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/comments?post=2642"}],"version-history":[{"count":0,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/posts\/2642\/revisions"}],"wp:attachment":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/media?parent=2642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/categories?post=2642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/tags?post=2642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}