How to choose a light: Lumens vs Candela | RevHiker
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- čas přidán 6. 09. 2024
- / revhiker
www.amazon.com... What is the best and brightest EDC flashlight? Well that depends on a lot of things...but hopefully this video will help you sort out the "brightness" of your next light purchase by showing the difference between lumens and candela ratings. Demonstrated with the Olight S30R Javelot, Olight S2 Baton, and Streamlight Protac 1L.
You got everything right.....except when you said that candela dictates battery life. Candela is merely an optical property and has nothing to do with battery consumption.
yes im also get a bit confused when he say that.. in my experience in modding flashlight, battery life depend on how many amps the driver draw...
I don't know how old is video is but this is the excellent video.. No one has ever broke down and told us what lumens really mean how the flashlight works... great job and thank you
Wow, I hope this becomes one of your highest rated videos! Makes you pause and think about the "lumens" rating and our assumption that one is better than the other on that point alone. Funny timing as I was currently looking at the Black Diamond Revolt and a hybrid light 250 to work as a team going forward. Havent purchased either yet so I can do my homework again! Thanks for this video, great idea!!!
+Marc Julien Thanks! I hope its one of my best too lol! This was something that was confusing me for a while so I looked into it and wanted to share it.
Wow! I had no idea there could be such a big difference. I think many people, myself included, just focus on the lumens. Thanks for making this video!
You're welcome! Thanks for watching
Super rad video and great information. Thanks for the education!
thanks!
I'm on a journey to figure when and why people started referring to "candle power" as candela... Maybe I still have no clue what's going on, but your explanation was good!
Justen Lewis thanks!
Awesome video, it really helped me!
+brs7452 Thanks! Glad it helped!
Excellent vid! Thank you very much for posting it. Great info explained very well. Keep up the great work.
thanks!
Great and helpful video.
Thanks
I was wondering about this thanks for clearing that up !
+PREPFORIT sure thing!
Lumens are the "total" output of a light source period. Candela power is based on the amount of lumens that strikes a ("one foot square") object that is ("one foot away") from the light source at a 90 degree angle, that source is actually based on one wax candle. Fun fact lol.
I graduated from seminary but had two physics classes as an undergrad; I hated them both Ha Ha.
+David America haha ya I wasn't much on physics either. Thanks for the definitions.
That was very interesting, helped a lot.
+Kyle macpherson Cool!
so which one is better to blind a person at close distance, 1300 lumens throw (with more candela) or 1800 lumens flood (with less candela) ?
Something else to consider since flashlights are getting brighter every week: it's possible to have a light that's too bright. I have a 2150 lumen light I use at work, but it will blind me if I use it up close. I can't even see what I'm pointing it at. For camping scenarios, I think battery run-time performance is the most important thing to consider.
I agree. you can have too much light
i have my need covered i have the imalent dx80 and nitecore tm38 there both heavy but that's me too
good infomative video. :)
I have a Surefire that is rated @ 600 lumens yet it throws the beam much further plus has more flood than the Chinese made lights that advertise over 1000 lumens.
Thank you!
Cheers Mate!
Informative!
am I the only one that started to get a little light blind toward the end with full screen? lol
This is just not technically correct. Both Candela and Lumins measure the total (integrated in all directions) output of light. For any given source measured correctly they differ by a factor of 4xpi (about 12.5) for arcane reasons. The lights in question, if measured correctly, will produce total outputs whose ratio is the same in lumins or candela, so there is some measurement error in those numbers reported. All of this says nothing about the appearance of the beam when concentrated. Obviously the the same luminosity (or candela) beam when focused will be brighter!! So the fact that the lower lumin beam is brighter is not a shock because the spot is much smaller. Hope this helps....good try but not quite correct.
I have seen lights in the local store 4,000,000 candela, means nothing. Focus does matter.
They may have been mislabled. Candela is a measure of directional light. How much light is in a focused area. It may have been candle power instead. Which is a total light measurement.
Ohly shit! Those eyebrows (➖_➖)