How Many Amps Do Car Headlights Draw. If youre running 55W hallogens low beam do the math. 2 head and 2 tail lights will use up 10 amps of current at 12-volts.
Formula is Power watts Voltage Current A. You need to find out what the current draw is on high beam. I drove the car at lunch and it started without any trouble.
If they are LED the draw is less but with Halogen lamps the draw is about 8 amps DRLs run the bulb at a lower power level which extends bulb life.
A weak or old battery usually results in pulling larger amps. So for a 60W bulb in a 12V system the draw will be 6012 5 amps. If you want to crank up the volume for parties and plan on using a powerful amplifier then 5 amps likely wont be enough either. We do have power supplies available that offer up to 30 amps.
