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/diy/ - Do It Yourself

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>> No.1993204 [View]
File: 249 KB, 1255x941, LED Circuit.jpg [View same] [iqdb] [saucenao] [google]
1993204

Noob here. Why doesn't this light up when I touch both wires to the part that has a + and - on it? I connected 4 button batteries, each are 3v and the LED requires 12v. There's a dimmer(not sure what it's called) inbetween.
I also tried connecting an old car door light bulb and it didn't light up. I added a fifth battery now but that didn't change anything.

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