This was the most comprehensive, didactic and objective explanation about light output that I've seem a bunch of other guys tried to give. Thanks a lot!👍
Great explanation. I've telling my friend you can't just go with the highest lumens but he never listens. I can't wait to show him this video. Thank you.
a good note on optics and how it relates to the power of a light source is always remember light houses could be seen for massive distances weather and of course horizon permitting even when they only had a simple oil lamp as a source all thanks to the Fresnel lens.
Good video, thanks Would be nice if you could do comparison of some products and also advise on what figures we as buyers need to consider for different uses.
Thanks this was very helpful. Now if only light manufacturers could list all three ratings on their products so we could make an educated decision about what to buy that would be great. Thanks once again
It’d be nice to have a list of generic purposes for certain lights. I see guys with spot patterns for the side of their rig for camping and a flood for their bumper mounted bar. For example: Ditch light preference: flood with X lumens, X candela, X LUX. Forward facing light: flood/spot combo with X lumens, X candela, X LUX. Etc. Some sort of generic list like that and then of course everyone can do/get what they want after that. But I think a generic list would be a great starting point ESPECIALLY for all the new people getting into off-road who ask the same questions all the time on Facebook.
Would love to see a side by side walk through of several of your best selling lights at different price points with the utilization of the terms and descriptions from this video with both controlled environments (factory) and uncontrolled (trail)
Candela = Lux x distance squared. So candela is the strength of a light hitting a surface at a specified distance. For example, a light measured at 1000 lux from a distance of 10 meters has a candela rating of 100,000 candela.
So now I have to take a course in the local university to buy a light bub? LOL A video about how to determine which light bulb (without the secretes of the universe) to purchase will be well appreciated.
So, how are you computing the Lux and candelas for certain lights? For example, when I buy a FLEX fixture from you folks, I get that bright spot, then the dimmer peripheral region. If I need 500 lux to see something, and the fixture has a 600 lux peripheral band with a 1500 lux spot that holds a pretty solid 1500 lux throughout that circular region, then you have a lot of marketable light for that fixture. -- Sometimes, I inclined to ask for a cardioid lux map. But really, a picture of the beam on a wall with a measuring tape is really all we need to pick a great beam.
I understand lumen and lux but not a candela 😞. Anyway, can I use smartpone's light sensor to measure my flashlights lux count? All I do is putting my phone 10 meters from my flashlight?🤔
Question: at what point lumens - candela exceed our ability to see? 20/20 vision. Assuming a 1000 Lumens throw equal candela are we able to see clearly or it does not matter? ( I manage to confuse the question, I think you would know) Thank you.
A metric you can use is candela per lumen ratio. You see that one light has 50,000 candela and the other has 10,000, but they both have 5,000 lumens. I'm sure a high quality lighting company like KC Hilites lists the candela of every light along with lumens, right? More candela for the same lumens is a spot, and fewer is a flood. Lux tells you nothing. Candela is lumen per steradian, or degree of an arc. This is also know as throw. The longest throw flashlight in the world right now puts out about 700 lumen, like a 2 C-cell flashlight, but it has a candela rating of over ten million candela and can throw over 3 and a half miles. Lumens tell you how many photons and candela tells you how tightly they are packed. You need both.
KC HiLiTES excellent. This may not be your field per say but I’m looking to lift a TRD Pro. Rough Country said they don’t supply kits for a TRD Pro. Can you point me in the right direction? Maybe a company KC is affiliated with?
Seems strange then that we use Lumens and even Candela for flashlight ratings. Isn't Lux more helpful? Candela makes sense when a lot of light is being produced over a huge area in all directions - you wanna know how much is getting on your book vs. the back wall. Lumens makes sense from a manufacturing standpoint. But shouldn't we all care about more about Lux for flashlights? (very specifically speaking about flashlights).
think of it as: 1) how far a light can reach. If it reaches 1000 meters it has more candela than if it reaches 500 meters. And 2) if you looked at the beam of light (which is narrower, called spot) it is more blinding if it has more candela. Yes with more lumens all things being equal it is brighter, but if you compare 1000 lumens and 10000 candela, and another with 500 lumens and 100000 candela, the second one with higher candela will reach further and will be more blinding than the first one.
Oh, this is about vehicle! I am using common light that we can get from the light section anywhere in the world. No wonder why I was wondering this guy is trying to con me, 10 meters is too far, I am not seeing anything in 1 meter2 ! Hahahaha!
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
So glad you explained that I've had way to many argumentative discussions about lights and lighting ..... you can bet I'll be showing this video....
"a jeep weighs as much as a tank, you know who you are" i feel attacked
This was the most comprehensive, didactic and objective explanation about light output that I've seem a bunch of other guys tried to give. Thanks a lot!👍
Great explanation and visuals for this subject! Thank you for creating this!
Great explanation. I've telling my friend you can't just go with the highest lumens but he never listens. I can't wait to show him this video. Thank you.
i just studied for my finals thanks to you man ! :D
Yes!! Been waiting for this to drop!!
Awesome job buddy
Clearest, most useful explanation and comparison of these concepts I have heard. Well done.
Can we get a video on KC fog lights
YOU CLEARLY EXPLAINED,SIR...
a good note on optics and how it relates to the power of a light source is always remember light houses could be seen for massive distances weather and of course horizon permitting even when they only had a simple oil lamp as a source all thanks to the Fresnel lens.
this is a great presentation, keep it coming, thanks
Thanks for shining some light on this topic.
A very concise yet crystal clear explanation with simple examples 👍
Great information! Love the educational videos.
I must say that i am now starting to understand this explanation. Thanks alot!
Good video, thanks
Would be nice if you could do comparison of some products and also advise on what figures we as buyers need to consider for different uses.
Very Clear Thank you. Prof KC.
Excellent presentation. VERY ILLUMINATING!
Thanks this was very helpful. Now if only light manufacturers could list all three ratings on their products so we could make an educated decision about what to buy that would be great. Thanks once again
Very practical explanation. This now makes sense.
Thanks a lot bro.
Great explanations!
It’d be nice to have a list of generic purposes for certain lights. I see guys with spot patterns for the side of their rig for camping and a flood for their bumper mounted bar. For example:
Ditch light preference: flood with X lumens, X candela, X LUX.
Forward facing light: flood/spot combo with X lumens, X candela, X LUX.
Etc.
Some sort of generic list like that and then of course everyone can do/get what they want after that. But I think a generic list would be a great starting point ESPECIALLY for all the new people getting into off-road who ask the same questions all the time on Facebook.
Thanks for the helpful video. I'm setting up outdoor cinemas and this has been useful explaining lumen, lux, and candela
Would love to see a side by side walk through of several of your best selling lights at different price points with the utilization of the terms and descriptions from this video with both controlled environments (factory) and uncontrolled (trail)
Definitely could be one long video or several great videos a whole series if you break down by price points or categories of beam
Useful information! Thank you.
This video was so helpful! Thank you!
Outstanding in REAL Information
Thanks for this I've been needing a flashlight good to know this
Did you find a good flashlight?
@@Hoonigan82 Not yet
Candela = Lux x distance squared. So candela is the strength of a light hitting a surface at a specified distance. For example, a light measured at 1000 lux from a distance of 10 meters has a candela rating of 100,000 candela.
Great explanation!
Nice video. Please bring back the KC Hilites 46 Series/770 LE, you'll sell a ton of them!
Dude the beat is addictive
Very helpful. Thankyou
i am a big fan of flashlights, but 2day i understand how to buy for your needs, tons of thanks
Thank you
very helpful video for purchasing flash lights
thanks
So now I have to take a course in the local university to buy a light bub? LOL
A video about how to determine which light bulb (without the secretes of the universe) to purchase will be well appreciated.
what is the best option in lumens for a video projector?
awesome thank you
I meed a battery powered light that will illuminate an entire basement for a clean out.
Thanks for this info
Excellent breakdown of the info
Plz review on handheld 12v spotlights
Thank u
Gravity pro6 wide 40 video comparison?
Good video.
Great job Taylor!!! -Alfy
@@kchilites hola tienes para jeep j53 cuáles me escondas quiero led atolladero
So, which should I be looking for my truck? The Highest lux or candela?
So, how are you computing the Lux and candelas for certain lights?
For example, when I buy a FLEX fixture from you folks, I get that bright spot, then the dimmer peripheral region. If I need 500 lux to see something, and the fixture has a 600 lux peripheral band with a 1500 lux spot that holds a pretty solid 1500 lux throughout that circular region, then you have a lot of marketable light for that fixture.
-- Sometimes, I inclined to ask for a cardioid lux map. But really, a picture of the beam on a wall with a measuring tape is really all we need to pick a great beam.
what is the best option in lumens for a video projector please?
Thanks to you for saving my grades
Good video
i want to buy a led headlight so what should the lux be?
So if I understood this correctly, the best light would be one that is high in lumens, a large LUX value, and a high Candela amount. Right?
Are any of these units actually scientific standards? Like a real conversion number?
good info
Lol, I'm here because I wanna buy a flashlight and the box have ton of pictorial symbols and I wanted to know what it meant. 😂😂
Exactly!! Me too! Now off to shop...😉
Great explanation and amazing animations/footage.
How is this channel so small and yet has such production value?!
if Candela is for distance, what about Lux? Isn't that what Lux is for?
How are candelas measured? Polarized lens?
Good info!
You from Kansas city?
I understand lumen and lux but not a candela 😞. Anyway, can I use smartpone's light sensor to measure my flashlights lux count? All I do is putting my phone 10 meters from my flashlight?🤔
Question: at what point lumens - candela exceed our ability to see? 20/20 vision. Assuming a 1000 Lumens throw equal candela are we able to see clearly or it does not matter? ( I manage to confuse the question, I think you would know)
Thank you.
A metric you can use is candela per lumen ratio. You see that one light has 50,000 candela and the other has 10,000, but they both have 5,000 lumens. I'm sure a high quality lighting company like KC Hilites lists the candela of every light along with lumens, right? More candela for the same lumens is a spot, and fewer is a flood. Lux tells you nothing. Candela is lumen per steradian, or degree of an arc. This is also know as throw. The longest throw flashlight in the world right now puts out about 700 lumen, like a 2 C-cell flashlight, but it has a candela rating of over ten million candela and can throw over 3 and a half miles. Lumens tell you how many photons and candela tells you how tightly they are packed. You need both.
sir, i need a light that can visible even if the man is away from 20Km. please suggest me a light. my application is marine.
Ironically I don't even drive, but this was educational. Thanks.
Can you tell me if item #92192 fits on 2020 Toyota 4Runner TRD Pro?
KC HiLiTES excellent. This may not be your field per say but I’m looking to lift a TRD Pro. Rough Country said they don’t supply kits for a TRD Pro. Can you point me in the right direction? Maybe a company KC is affiliated with?
@@FrenchHawk878 Check out Toytec. They have lots of options and can talk you through what you want over the phone.
Telling my kids "That was a great video"..
Can a XHP50,2 20W 3,7V 4000MAH FLASHLIGHT PRODUCE 4000 LUMENS ?
2:30 except house power is a measure of pounds/foot/second not a measure of speed
Helpful, kind of, but I still wouldn’t know which light to buy.
ile to kosztuje? :D
In case of a laser
Aren't lux and lumens the same?
Lux is the best
Normalize volume between content and cutscenes.
Seems strange then that we use Lumens and even Candela for flashlight ratings. Isn't Lux more helpful? Candela makes sense when a lot of light is being produced over a huge area in all directions - you wanna know how much is getting on your book vs. the back wall. Lumens makes sense from a manufacturing standpoint. But shouldn't we all care about more about Lux for flashlights? (very specifically speaking about flashlights).
No tienen traductor en español
still doesn't tell me how bad I'm getting ripped of buying these Garage LED lights .
still dont understand candela :/
@@kchilites that would be awesome
think of it as: 1) how far a light can reach. If it reaches 1000 meters it has more candela than if it reaches 500 meters. And 2) if you looked at the beam of light (which is narrower, called spot) it is more blinding if it has more candela. Yes with more lumens all things being equal it is brighter, but if you compare 1000 lumens and 10000 candela, and another with 500 lumens and 100000 candela, the second one with higher candela will reach further and will be more blinding than the first one.
Lumen = Amount of light.......
How did I come to this conclusion when I was drunk
Oh, this is about vehicle! I am using common light that we can get from the light section anywhere in the world.
No wonder why I was wondering this guy is trying to con me, 10 meters is too far, I am not seeing anything in 1 meter2 ! Hahahaha!
😪
Diagrams are nonsense
Candela made no sense seeing that car lights are made to shine in one basic direction. Anytime you measure Light it's in one direction.
Not quite