GLP Standard
New member
Just wondering if someone can tell me, what is the difference between Candlepower and Lumens? Im assuming that they are just different scales of measurement, kind of like Standard and Metric, but Im not sure.
Candlepower and Lumens?
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oldbillthundercheif
Moderator
It's complicated, but take a run at it if you feel ambitious:
http://www.madsci.org/posts/archives/apr2001/987003940.Ph.r.html
http://www.madsci.org/posts/archives/apr2001/987003940.Ph.r.html
oldbillthundercheif
Moderator
-From the link.
GLP Standard
New member
uhh...I dont think complicated is the word for it. Ill tackle that link a little later when Ive rested for atleast 10 hours. I'm almost sorry I asked...
Martyn4802
New member
I guess there are some questions in life that should remain unanswered...LOL
Martyn
black bear 84
New member
GLP,
What you should know, is that the candlepower and lumens don't compare.
Candlepower is the measure of intensity at the center of beam (the hot spot) concentrating light there score high, like the BIG spotlight reflectors cloking 2 or more million candlepower.
Lumens is the measure of total tight emited by the source. It include the side spill or flood.
Very useful in flashlights as we use the entire light output out of them.
Some flashllights will give you the two measurements.
The Magcharger is 40,000 candlepower, 200 lumens
The Ultra Stinger is 75,000 candlepower and 295 lumens
The Borealis is 1.050 lumens, two million candlepower
Here are some of the lights the shoot out:
The Maglite 3 D (39) lumens, Magcharger (200 lumens) Ultra Stinger (295 lumens)
the Surefire M-6 (500 lumens) and the Borealis, rechargeable (in red)1050 lumens.
Cheers
Black Bear
What you should know, is that the candlepower and lumens don't compare.
Candlepower is the measure of intensity at the center of beam (the hot spot) concentrating light there score high, like the BIG spotlight reflectors cloking 2 or more million candlepower.
Lumens is the measure of total tight emited by the source. It include the side spill or flood.
Very useful in flashlights as we use the entire light output out of them.
Some flashllights will give you the two measurements.
The Magcharger is 40,000 candlepower, 200 lumens
The Ultra Stinger is 75,000 candlepower and 295 lumens
The Borealis is 1.050 lumens, two million candlepower
Here are some of the lights the shoot out:
The Maglite 3 D (39) lumens, Magcharger (200 lumens) Ultra Stinger (295 lumens)
the Surefire M-6 (500 lumens) and the Borealis, rechargeable (in red)1050 lumens.
Cheers
Black Bear
GLP Standard
New member
Good info Black Bear. So would I be right in assuming then that the Candlepower rating doesnt determine the Lumens? Or even though theyre not really related, do they pretty much rise according to one another? I had no idea my 3D maglight had such a small Lumens rating. I definately need a new flashlight 
A guy at work has the Stringer rechargable. Not sure he would part with it, but how does everyone feel about them? Not sure which one exactly, but I know he has the larger head on it too
A guy at work has the Stringer rechargable. Not sure he would part with it, but how does everyone feel about them? Not sure which one exactly, but I know he has the larger head on it too
black bear 84
New member
I can have a light with 1050 lumens doing two million candlepower, and make it a two million and a half, just by putting in the same light, a bigger head, with a reflector that concentrate all those lumens in a tighter spot.
Borealis two million candlepower
Borealis two and a half million
The two (2') and two and a half (3") million heads
The Borealis with the 3" head
And a very small reflector can have the opposite effect, I just bought a small light with a Rebel 200 lumens module that can barely illuminate a target 26 yards distant, just because the small reflector spread the lumens all over the place in a big flood.
Cheers
Black Bear
Borealis two million candlepower
Borealis two and a half million
The two (2') and two and a half (3") million heads
The Borealis with the 3" head
And a very small reflector can have the opposite effect, I just bought a small light with a Rebel 200 lumens module that can barely illuminate a target 26 yards distant, just because the small reflector spread the lumens all over the place in a big flood.
Cheers
Black Bear