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oldspark

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Joined: November 03, 2008
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Posts: 2,851

Posted: August 30, 2010 at 5:10 AM - IP Logged

For additional light?
What sort of LEDs? What sort of light - warning lights or headlights etc?

For 12V you could might be able to connect 4 LEDs in series without a resistor depending on the LED voltages.
Otherwise connect a resistor in series where the resistance R (Ohms) is V/I where I is the LED current, and V is the voltage you need to drop (say 10-12V for a single 2-4V LED). (Probably a 1/2W resistor.)

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