hey techies, a little help here, please
I've found some LED light fixtures at Harbor Freight that my wife likes. They provide plenty of light where we need it and look like they belong there. They operate on 6 AA batteries but are actually ...
Forum Discussion
Do you have a multimeter? If the led light is 4.5 volts hook it up to 3 flashlight batteries and measure the current. Divide that current into 12.6 volts to give you resistance value. However, using 4.5 volt leds will not be efficient because 8.1 volts times the current will be power dissapated across the resistor and doing nothing but generating heat. Putting 2 of the leds in series plus the resistor would help or try 3 leds in series but using 12 volt led would be a better idea. Check out 1000bulbs.com. They have fairly good prices on leds.
