Quote:
Originally Posted by StirCrazy
Ok, you better start doing something else as the two examples here don't show your point at all, the residential ones are 1 watt emitters not 3 watt so way way less heat, and after doing some digging on that block of leds you linked to they use a patent pending cooling system, which happens to be peltier active cooling, which in its self is a cool idea, but not practical for fish tank lights as it would lead to a ton of condensation inside your fixture.
Steve
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Actually they have ones that use 3W LEDs as well
http://starwire-led.en.made-in-china...GU10-C3W-.html
Also you could use a peltier system and regulate the current with a simple thermo switch so the surface stays at a consistent temperature just like fans so condensation would be no different. As long as the surface temperature stays at or above ambient you won't get condensation.
The bottom line is many high powered systems already exist which don't use fans so it can be done and it can still be done better. I'm not sure why you all feel the need to debate that, if you like fans go nuts but I'd prefer a system without fans. It's a simple personal preference I guess, and I'm entitled to it.