P15D-30 LED Headlight 6 Volt. This lamp outputs up to 900 Lumen output or up to a 60 to 70 CP Candle power. This bulb is comparable to a 45 to 55 Watt incandescent light bulb. There are two filaments low beam and high beam. The outline of this bulb is smaller than the original light bulb so you know it will fit and work. The led light has optically aligned to the filament focal position of the original light bulb. Aligning the SMD to the filament focal point ensures you get maximum light output to your light fixture and lens. The bulb is dim-able so you do not have to worry that the light bulb will shut off when you have a low voltage issue in your classic or vintage car, truck, tractor or motorcycle, and the voltage drops below 6 volts. This bulb will work in both a positive ground chassis and negative ground chassis 6 volt systems. There is a total of 60 5730 SMD's. This smd is a good size and power to provide a higher Lumen output. The led lamp is the same outline as the original light bulb so you will not have any issues when installing led headlight. Other names include double contact, DC prefocus, candelabra prefocus and double contact prefocus.