Thread: DIY cheap LED array
View Single Post
  #5    
Old 06-30-2009, 06:04 AM
budsbunny
Marijuana Toker
Marijuana Toker
budsbunny is offline 		 
Join Date: Jun 2009
Location: Anywhere but here
Posts: 134
budsbunny is on a distinguished road
Points: 2,200, Level: 7 Points: 2,200, Level: 7 Points: 2,200, Level: 7
Activity: 3% Activity: 3% Activity: 3%
permalink
Looking at the specs sheet for the LEDs, it says that they dissipate 80 mW MAX @ 5000 mcd.

You would need about 163 LEDs to dissipate the same 13 watts that the CFL uses.

That is 815 candela. I am not sure how many Candela a CFL bulb has but I think I can safely assume that the LEDs will out preform any CFL, when you compare power.

An easy way to see that they are more efficient is the amount of heat produced. When I leave the LEDs on all day, they dont get any warmer then my body. My power supply gets as warm as my body, maybe warmer.

On the other hand, if you leave a CFL on all day, it can burn you if you try to touch it.

That means that a lot of energy is wasted in heat production. The less heat produced, the more efficient. Keep in mind, there is no such thing as free energy.
Reply With Quote