LED Lighting - DIY Style

Byron

That tank is lovely, nice work.

cwmorrow

Have you a link to the schematic you found online?
Thanks!

rjwwrx

Glad this has been a success for you. Love it when experiments turn out!

redchigh

since they looked better under the cool white, have you thought about just adding 3-8 (cheap) blue LEDs to help balance? make sure they're wide-angle, and somewhere close to 460-480nm would be ideal for PAR...

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Geomancer

This is where I got the basic idea: Specs & Function

I haven't thought of adding anything more. "Regular" led's wouldn't be bright enough, and power LEDs would need the heatsinks and another constant current source. So it isn't as easy as just plugging them into the existing circuit.

These LEDs have their peak intensity in that range already though. It's actually red that is really lacking with these LEDs. On the first page of this thread is the color spectrum.

redchigh

I was just thinking of balancing the color to our eyes, since I thought you mentioned you didn't like the color..

Geomancer

Ahh, it's grown on me some, just takes some getting use to. The original bulb was an 8000K and had kind of a purple-ish hue to it. I didn't like the purple, but the tetras were a deeper red under it. I think they've adjusted some though because they are a nice red color again.