i have 2 led's.. rated at 3.7 volts..
since cars are 12 volts... what resistor would i need.. and i need to know in ohm... since they don't say in volts.. and i can't remember from school.. so anyone?
please
since cars are 12 volts... what resistor would i need.. and i need to know in ohm... since they don't say in volts.. and i can't remember from school.. so anyone?
please
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