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Power LED's - simplest light with constant-current circuit

Step 3Wire the LED

wire the LED

connect leads to the LED

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1 comment

May 12, 2010. 4:29 PM

EmmettO says:

Can this circuit be used to drive multiple LEDs? If so, would they be wired in parallel or series?

Oct 28, 2010. 9:05 AMvanmankline says:

I'm not an expert on this topic, but I'm learning.... From what I know:

You would need to switch out the resistors and ensure the other components can handle the current you require. The way these work you will get better results if you wire the LEDs in series.

Oct 28, 2010. 11:02 AM

EmmettO says:

Thanks, I eventually figured it out. http://www.instructables.com/id/USB-Mega-Flashlight/

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dan (MonkeyLectric)

Dan Goldwater is a co-founder of Instructables. Currently he operates MonkeyLectric where he develops revolutionary bike lighting products. He also writes a DIY column for Momentum magazine.