9004 LED Headlight 9 to 40 Volts No Polarity 12000 LM Pair. Works either positive ground or negative ground. Up to 6000 Lumens for the high beam. Uses about 1.91 Amps at 12 Volts. Up to 23 LED Watts. Comparable to a 55 to 65 Watt Halogen bulb. Available in White 6000K. This bulb is not dimmable due to the wide voltage. Wide voltage of 9 to 40 volts. The led bulbs are no polarity. These led bulbs do not have load equalization built in, load equalizers may be required. 2 Year warranty.