What resistor i use to light up 6 volts led light using 12 volts battery

I have led light that uses 6volts battery or 6volts power supply. I dont know what resistor do i use when i suppose to use 12volts battery. Please help.give a picture of diagram if you have. Thank you and more power
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  1. You can use two 6V led lamps connected in series to a 12V battery supply. I believe this is the easiest way to do what you want to do.

    Alternatively, if you know the internal resistance of the led lamp, then you can buy and connect in series the same ohmage resistor.
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