H8 H9 H11 H16 LED Headlight 9 to 40 Volts No Polarity. Up to 12,000 Lumens per pair. Operates either positive ground or negative ground. Wide voltage from 9 to 40 volts no polarity. This bulb is not dimmable due to the wide voltage. Up to 6000 Lumens per bulb. Up to 23 led watts per pair. Each bulb uses 1.91A at 12 volts. Comparable of a 45 to 55 halogen bulb. Single filament. This bulb uses a H11 female socket.