DX » Community » Reviews » 1.3A 40W Power Constant Current Source LED Driver (85~265V)
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  • posted by9252146 on 04/19/2015

    Pros: Works reliably, does not build much heat with 3 chains of 14 1W LEDs of 350mA each. Survives power-ons w/o load, just buzzing nastily Cons: When using with a chain of different color LEDs DO NOT start or end the chain with RED (2V) ones, they'll 100% burn out on power-on when cold (e.g. a a... Read more


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  • posted bycousineau on 08/22/2013

    I have a few of these to power different 40 watt blue LEDs. They work reliably with no heat issues. They are forgiving if you ever cross wires and make a spark. Mine have worked for days continuously. There's a bit of high-pitched noise. I have these open on a desk though. If they were in a case... Read more

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  • posted byChucklesExtreme on 12/18/2011

    Seems to be well-built and sturdy. Has leads already attached to connect to the LED. Took 3 weeks before product finally shipped. Cost is higher than the 50w driver also sold on DX. There is a fairly long lag between turning on the AC and the LED lighting up -- 1.5-2 seconds. You have to solder a... Read more

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