H4 P43t base 6 Volt LED headlight for vintage vehicles and classic motorcycles. This led is designed for 6 volt motorcycle headlights. Very bright. Dual high and low beam. Up to 750 Lumen output. Comparable to a 50 - 75 Watt incandescent bulb. Made with the latest smd leds 5703. The profile of the led fits inside of a normal light bulb so you know it will fit your application. Operates either 6v positive ground or 6v negative ground.