H7/H18 LED Headlight 9 to 40 Volts No Polarity. Operates either positive ground or negative ground. Up to 1700 Lumens per headlight bulb. Each headlight bulb uses up to 15 Watts. Maximum voltage 45 volts. The led headlights can operate from 9 to 40 volts no polarity. Up to 30,000 hours life. Available in White 6000K. Uses about 1.25A at 12 volts. Long warranty please see details for more information. Comparable to a 45 to 55 Watt halogen bulb. This bulb has a built in fan to keep the led's cool so they last longer. This bulb may require led load equalizers. Comes with two bulbs per package.