Rebaydo 2pcs H1 LED Headlight 5 to 9 Volt No Polarity Single Filament designed for 5 to 9 volt electrical systems and compatible with both positive ground and negative ground vehicles. Features P14.5 base configuration, single filament operation, up to 1400 lumen output, and up to 16 watts power consumption. Uses an aluminum heat sink to keep LEDs cool for longer service life. Comparable light output up to a 144 watt incandescent bulb. Dimensions are 2.36 inches overall length with a 0.89 inch maximum diameter at the disk around the base. Available in White 6000K or Warm White 3000K color temperatures. Compatible with 6 volt vehicles, trucks, motorcycles, scooters, and 8 volt Ford applications. This bulb is not dimmable due to the wide voltage operating range. CE and RoHS compliant.