Plus it'd be much cheaper to buy than the $15 constant current sold, and could have multiple versions for different LED's.
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MichaelN wrote:Switchmode is the way to go with these high-powered LEDs. You can make your own, but I wouldn't bother when you can buy stuff like this from Hong Kong with free shipping:
Please be really careful if you use that last unit on mains voltage.
DX is great for LEDs too - they have genuine Cree & Seoul Semi units.
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