OK, I have a (planted freshwater) aquarium that is entirely lit by LED now. Looks and works great (pictures soon), but its primary intention has changed. I need a little more light from the existing fixture.
Problem is, I now have room left for only 4 times 2.5cm (square/round) modules that aren't much thicker than 1 cm. And they need to have proper cooling already built-in, or shouldn't get much hotter than 40 degrees Celsius.
So I was searching for modules like these: http://www.alibaba.com/showroom/wate...ed-module.html but I doubt I can get enough light out of 4 of those, since I also require a little yellow combined with the purest white possible. So, I can put no more than 4 modules with 2.5cm diameter in the fixture. From that alibaba link it's unclear which module-seller truely has the brighest LEDs.
Also, the power source is already there and is 12, 13 or 14.0 Volts DC. There is room for 2 amps maximum from that PSU. So I was thinking of 2 yellow (or amber), and 2 white modules (I'm looking for the brightest possible white or warm-white, peaking around 4000K, with as little green as possible). Meaning each module could draw around 500mA max. from that 14V source.
Modules like these look OK:
and give about 60 to 80 lumen per module/led (these are from rightleds).
I'm capable of building modules/drivers myself, but the whole thing (having to make them IP67 waterproof, having to fix the cooling problem, changing the Voltage etc.) and re-arranging the existing power-channels for sunrise/sundown might be too much work for its use.
Is there already some manufacturer that has managed to put Cree or Luxeon LEDs in waterproof (IP68 or at least IP67) modules that are as flat as possible, and can be connected directly to an existing 14.0 VDC power-feed? And don't require extra cooling?
Anyone knows of a reliable place to buy such modules from online (only 4 pieces) when in Europe?
All help or advice highly appreciated!
By the way; The project will be published online thoroughly when functional and sufficient, and I'll be dropping names of those who had the best advice and stores that sold me the brightest LEDs. ;-)
Problem is, I now have room left for only 4 times 2.5cm (square/round) modules that aren't much thicker than 1 cm. And they need to have proper cooling already built-in, or shouldn't get much hotter than 40 degrees Celsius.
So I was searching for modules like these: http://www.alibaba.com/showroom/wate...ed-module.html but I doubt I can get enough light out of 4 of those, since I also require a little yellow combined with the purest white possible. So, I can put no more than 4 modules with 2.5cm diameter in the fixture. From that alibaba link it's unclear which module-seller truely has the brighest LEDs.
Also, the power source is already there and is 12, 13 or 14.0 Volts DC. There is room for 2 amps maximum from that PSU. So I was thinking of 2 yellow (or amber), and 2 white modules (I'm looking for the brightest possible white or warm-white, peaking around 4000K, with as little green as possible). Meaning each module could draw around 500mA max. from that 14V source.
Modules like these look OK:
and give about 60 to 80 lumen per module/led (these are from rightleds).
I'm capable of building modules/drivers myself, but the whole thing (having to make them IP67 waterproof, having to fix the cooling problem, changing the Voltage etc.) and re-arranging the existing power-channels for sunrise/sundown might be too much work for its use.
Is there already some manufacturer that has managed to put Cree or Luxeon LEDs in waterproof (IP68 or at least IP67) modules that are as flat as possible, and can be connected directly to an existing 14.0 VDC power-feed? And don't require extra cooling?
Anyone knows of a reliable place to buy such modules from online (only 4 pieces) when in Europe?
All help or advice highly appreciated!
By the way; The project will be published online thoroughly when functional and sufficient, and I'll be dropping names of those who had the best advice and stores that sold me the brightest LEDs. ;-)
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