10W or 20W LED driver, any circuits or suppliers?

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#1
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I'm thinking about making one or two lights for underwater photography using 10 or 20W LEDs. I'm thinking about 500 to 1000 lumens of ouput should be plenty enough, more and I'll be frying fish.

The problem is that the local supplier for the LEDs only has 5W drivers in stock, so I'm left with the option of either finding a higher oomphage driver somewhere (preferably one that won't cost a leg) or finding a driver circuit to make it myself from scratch.

Suggestions?

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You need to be more specific than that.

For example what kind on input voltage for your driver do you have? And is it AC or DC?

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LED manufacturers usually recommend drivers for their devices. I'd use one of those.

Leon

Leon Heller G1HSM

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Tridonic Atco
Meanwell
Osram
All these above companies should have a controller to suit your needs.

I'd think long and hard before making the driver yourself. Isolation is even more important when water is involved. Pretty sure you can find a driver appnote for such a beast at powerint.com

oddbudman

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Actually, I just ordered this module: http://www.dealextreme.com/detai...
Now I just need to get an underwater torch to replace it's light with it.

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According to the comments it contains 2xAMC7150

datasheet: http://www.proton.com.pl/pdf/amc...
ref design: http://www.addmtek.com/App_info/...

I don't know if its necessary, but it might be a good idea to seal the driver with some thermally conductive potting compound.