tag:blogger.com,1999:blog-10529476.post3706891820374848240..comments2024-03-28T12:59:38.363-06:00Comments on Road Trail Run: Petzl IKO Core Headlamp Review - A Light & Bright, Comfortable & Innovative Design. Petzl ComparisonsSam Winebaumhttp://www.blogger.com/profile/17969086391170473784noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-10529476.post-33546261769212197352020-12-30T06:13:13.004-07:002020-12-30T06:13:13.004-07:00Paulius, while the IKO Core is a great and innovat...Paulius, while the IKO Core is a great and innovative little light and would easily suffice for my trail use, my night running balance and competency have always been a bit weak, so I choose more lumens and use the Swift RL most often (coupled with the Kogalla RA) as to just have the maximum amount of light and I also love the effectiveness of the Reactive technology of the Swift RL (and Nao+). The more light I have, the more confident I feel (not just footing, but maybe a bit mentally as well) and the faster I can move with less chance of tripping/stumbling or getting off balance over the technical terrain and even off trail use.Jeff Vallierehttps://www.blogger.com/profile/08106877622296558733noreply@blogger.comtag:blogger.com,1999:blog-10529476.post-78170612524200032852020-12-30T00:31:13.295-07:002020-12-30T00:31:13.295-07:00@Jeff Valliere, so which one is your personal &quo...@Jeff Valliere, so which one is your personal "go to" when you are out for a 2-3h trail run? IKO core or Swift RL?Pauliusnoreply@blogger.comtag:blogger.com,1999:blog-10529476.post-21012810601382615052020-10-03T04:58:41.546-06:002020-10-03T04:58:41.546-06:00I agree with Lightning and azer89. While you might...I agree with Lightning and azer89. While you might think the headlamp doesn't dim at max brightness setting it absolutely does. Pretty much every headlamp on the market does that, some to a much more egregious degree than others to claim large lumen values. Petzl does explain that on their website (see link) but you have to know to look for it. You can also look read this article on Outdoorgearlab that goes into far more detail on that.<br /><br />https://www.petzl.com/US/en/DIY-projects/How-is-lighting-performance-measured-with-the-ANSI-PLATO-FL1-protocol-?ProductName=HF40R<br /><br />https://www.outdoorgearlab.com/expert-advice/why-headlamp-claims-are-deceptiveFlorianhttps://www.blogger.com/profile/15897662977488623106noreply@blogger.comtag:blogger.com,1999:blog-10529476.post-49332309328644740292020-09-16T18:58:42.205-06:002020-09-16T18:58:42.205-06:00Anonymous, if you had to choose, Kogalla. But, Ko...Anonymous, if you had to choose, Kogalla. But, Kogalla is not a headlamp and is best worn somewhere between the waist and chest. It puts out an amazingly bright, wide and full projection of warm light, but I find that the best setup is to combine with a headlamp. Even a 450-500 lumen headlamp is nice, but wow, when combined with something like the Nao+ or Swift RL (my current favorite), I can run technical trails at night just about as well as I can during the day. With this combo, I have come to embrace night running and is no longer viewed as a not so fun necessity.Jeff Vallierehttps://www.blogger.com/profile/08106877622296558733noreply@blogger.comtag:blogger.com,1999:blog-10529476.post-28966918504818686392020-09-16T11:04:46.312-06:002020-09-16T11:04:46.312-06:00hi jeff:
how does this compare to the kogalla ra?...hi jeff:<br /><br />how does this compare to the kogalla ra?<br />i guess i mean, if you had to choose one?<br /><br />thanks. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10529476.post-39909474166595271532020-09-16T06:28:21.546-06:002020-09-16T06:28:21.546-06:00Great feedback, thanks.
The 2.5 hour duration on ...Great feedback, thanks.<br /><br />The 2.5 hour duration on highest setting was from my own personal test, not based on a Petzl estimate (which I usually find to be quite close in a reasonable range of temperatures). For the IKO CORE, on a full charge, I turned it on the brightest setting at 7:50am while I was working from home and to the best of my knowledge, was shining equally bright until about 10:15am, where it flashed a few times and then dimmed to the medium setting. Some time after noon (maybe ~1pm?), it flashed again and dropped to the lowest brightness. Sometime between 3:30pm and 4pm the light finally went out. Temperature was 70-75 degrees F.<br /><br />I'll give it a second test to confirm.<br /><br />Jeff Vallierehttps://www.blogger.com/profile/08106877622296558733noreply@blogger.comtag:blogger.com,1999:blog-10529476.post-30175057722794051822020-09-16T05:12:51.153-06:002020-09-16T05:12:51.153-06:00Agree with Lightning,
Most headlamp marketing is ...Agree with Lightning,<br /><br />Most headlamp marketing is BS, they advertise X lumens for Y hours but in reality it's X lumens for a few minutes at full battery. As the battery drains, the headlamp will get dimmer and dimmer, so if you plot the brightness into a graph, you get a decreasing function.<br /><br />Not saying Petzl headlamps are a bad, actually they're very good but overpriced, and I wish they can be more honest, at least they can provide a runtime graph in their manual.azer89https://www.blogger.com/profile/15230416032623779364noreply@blogger.comtag:blogger.com,1999:blog-10529476.post-52844783052935312922020-09-15T20:25:18.025-06:002020-09-15T20:25:18.025-06:00500 lumens for 2.5 hours with that battery is not ...500 lumens for 2.5 hours with that battery is not possible with the efficiency of of current LEDs and drivers. The most efficient LED headlamps/flashlights are at about 100 to 140 lumens/watt now. 2.5 hours at 500 lumens is 1,250 lumen-hours. Divide that by the 4.625 watt-hour battery capacity and you get 270 lumens/watt, which is fantasy for now.<br /><br />At best you are seeing about 250 lumens average over 2.5 hours with a 1250 mAh 3.7 watt battery pack (4.625 Watt-hours). Petzl specs this light as running for 2:30 for MAX POWER, but that is tested using the ANSI/PLATO FL1 protocol, which times the run until it gets to 10% of the initial brightness value, so 25 lumens. A runtime graph of lumens over time would probably show this light averaging 180 to 250 lumens over 2.5 hours.<br /><br />That's not to say this light is bad. 200 lumens can be enough for many running situations with a good beam pattern. It's just important to realize that you can only get so much bright light for so much time with a small battery, and to take any ANSI FL1 runtimes with a realistic view.Lightningnoreply@blogger.comtag:blogger.com,1999:blog-10529476.post-78299043537158448752020-09-15T14:12:28.605-06:002020-09-15T14:12:28.605-06:00FollowingFollowingJeff Vallierehttps://www.blogger.com/profile/08106877622296558733noreply@blogger.com