Roger A. Shrubber
Well-Known Member
its hard to get sometimes, but if you put 100 watts into two separate devices, they'll both produce the same amount of heat, the only difference being the efficiency of the device. if you have a h.i.d. light thats 50% efficient, that means that half the power pumped into it gets turned into light, and the other 50% gets turned into heat. if you put a 90% efficient led in there, 90% gets turned into light, and 10% gets turned into heat.
if you buy 4 cheap inefficient leds, you save nothing over a 1k h.i.d. light.
if you buy 4 good, 90%+ efficient leds, you will save on power and heat. the savings comes from not having to drive them as hard to get the same results. you can run a good cob or QB at 2/3 (or less) what you would run a h.i.d. at and get the same amount of light out of it. so it runs cooler to begin with, because of the efficiency, and then even cooler because you don't need 1k watts, 600 should be at least the equivalent
if you buy 4 cheap inefficient leds, you save nothing over a 1k h.i.d. light.
if you buy 4 good, 90%+ efficient leds, you will save on power and heat. the savings comes from not having to drive them as hard to get the same results. you can run a good cob or QB at 2/3 (or less) what you would run a h.i.d. at and get the same amount of light out of it. so it runs cooler to begin with, because of the efficiency, and then even cooler because you don't need 1k watts, 600 should be at least the equivalent