It's not just about 7W, 8W, 11W, etc. efficacy matters!

Joined
Feb 14, 2006
Messages
2,724
It really does.
efficacy.jpg


Same circuit, different LED. Left is the result of what happens when you change a dimly visible red indicator LED with an InGaN green LED. Drive current is actually slightly reduced, because at higher forward voltage, the circuit can't provide as much current. The power input went up maybe 25% due ti an increase in forward voltage, but the output went from dimly lit to too bright to look at it.

Just because your new Fauxeon light is 7W doesn't mean its going to be brighter than a proper emitter, 3W :)
 

amanichen

Enlightened
Joined
Apr 23, 2006
Messages
335
Location
Virginia
Randy Shackleford said:
Also, green is the most visible color to the human eye.
Technically, the human eye can distinguish the more shades of green than it can red and blue.
 
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