What is the difference between candlepower and lumens?
Lumens is what is used to specify the total amount of light coming from any light producing device, and candlepower refers to the highest value of the light intensity to be found anywhere in the lights “beam”. Lumens tell you how “powerful” the light-producing device is, be it a light bulb of any type, a flashlight, or a car headlight. Candlepower tells you how tightly focused the beam is, assuming the light source has a lens or reflector to focus the light into a beam. Lumens can be measured quite accurately, using an instrument called an integrating sphere, and identical lights would all have similar lumen values. It is an important quantity to know when comparing different lighting products, as it tells you how much light each one produces. Candlepower can also be measured accurately, using a light intensity meter to measure luminous intensity, and then by applying the appropriate formula, which takes into account how far, the meter is from the light source. The problem is that he v
