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resistors for LEDs....help!
ok, i know nothing about electrical. What kind of resistor do i need to get if i want to use 5 volt LEDs? do i just get a 7 or 8 volt resistor? That would drop the supply voltage from 12.6 or whatever to 5ish? Im not sure what i need to look for on the packaging or product discription.
Second, how do i wire it properly? Is it just simply 12.6v lead wire, to resistor, to positive LED wire? most LEDs have a short and long prong--which is the positive? I could be going about this all wrong...please help
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