AtomSphere
Enlightened
As above... would like to know how many candlepower does a 30 lumen torch posses ...
1lumen = ??? candle power?
- Thread starter AtomSphere
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Let's see if I can get this in before the thread gets locked. . .
Candlepower is intensity, but lumens is total output. You can have a high-intensity (high candlepower) light with a tight spot that only puts out a few lumens. Or you can have a flood light with a low-intensity beam that puts out a lot of lumens.
The technical answer is this:
The candela (cd) is the SI (metric) unit for luminous intensity. The lumen (lm) is the SI unit for luminous flux. One lumen is the flux through one steridian (solid angle measure) at 1 cd intensity.
Scott
Candlepower is intensity, but lumens is total output. You can have a high-intensity (high candlepower) light with a tight spot that only puts out a few lumens. Or you can have a flood light with a low-intensity beam that puts out a lot of lumens.
The technical answer is this:
The candela (cd) is the SI (metric) unit for luminous intensity. The lumen (lm) is the SI unit for luminous flux. One lumen is the flux through one steridian (solid angle measure) at 1 cd intensity.
Scott
dano
Flashlight Enthusiast
You go in before the lock. Please search for this topic, as it's posted a few times a week.
-dan
-dan
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