Hoping the electronics experts can help me out.
I am making an LED map light and will be using some LEDs that are 12 volt. The specs recommend a current of 20 ma. How do I limit the current to these LEDs? I am guessing that a resistor would do it.
I will be using 4 of these in the lamp and would like to get the 20ma at 14 volts. Can you point me to a calculator or formula to determine the resistor size? Also, please advise if the formula is for series or parallel configuration.
Thanks so much for the assistance.
Larry
I am making an LED map light and will be using some LEDs that are 12 volt. The specs recommend a current of 20 ma. How do I limit the current to these LEDs? I am guessing that a resistor would do it.
I will be using 4 of these in the lamp and would like to get the 20ma at 14 volts. Can you point me to a calculator or formula to determine the resistor size? Also, please advise if the formula is for series or parallel configuration.
Thanks so much for the assistance.
Larry