Rebaydo 2pcs H4 LED Headlight P43t 9-40V AC/DC Dual Filament is designed for vehicles operating on either positive ground or negative ground electrical systems. Each bulb produces up to 6,000 lumens on either low and high beam while consuming up to 22 watts, making it comparable to a 50 to 55 watt incandescent headlight bulb. The compact 4.5mm x 1.4mm LED light source closely matches the size and focal position of an incandescent filament to provide an improved beam pattern and better road illumination. An integrated anti-dazzle low beam cup helps reduce glare for oncoming traffic, while the built-in cooling fan maintains proper operating temperature for extended LED life of up to 30,000 hours. Fits standard H4 (P43t) female sockets and operates from 9-40V AC/DC. Current draw is approximately 1.762 amps on low beam and 1.798 amps on high beam. Available in White 6000K only. These bulbs are not dimmable due to their wide voltage operating range. Load equalizers are not built in and may be required on some vehicles if headlight flicker occurs or the headlights do not switch properly between low and high beam. Use caution when installing into older or corroded sockets, as excessive force can damage the retaining ring or bulb base. Includes two bulbs per package, each tested before shipping and backed by a one-year warranty.