BA15S LED Headlight Forward Firing 6 to 30 Volt Non Polarity Single Filament. Works either positive ground or negative ground. Operates from 6 to 30 volts non polarity. This bulb uses a focused beam. The diameter is approximately 1.06". The length is approximately 2.51". Available in White 6500K or Warm White 3000K. Up to 1500 Lumens for the high beam. Up to 1200 Lumens for the low beam. Comes with Allen wrench so you can adjust the beam. This bulb has built in lens so it does not have to reflect off the lens. Full brightness from 5.7 to 30 volts. Comes with a Alan wrench so the focused beam can be adjusted to the orientation of you headlight fixture socket. The bulb does not have built in load equalization and may require external load equalizers. Symptoms of needing load equalization is the headlight flickers or unable to change from low beam to high beam. CE and Rohs. compatible with: