Headlight bulb LED 6v to 24volt 20/40W (nominal wattage) BPF negative earth, uses aproximately 0.5 Amp on low beam, 1 amp on high beam. Uses 2 x Cree XML-2 leds per side = 2 for low beam ; 4 for high beam. Does not have the same beam pattern as original bulb, Tested in local bikes on rallies and tours. LED lamps require a perfect earth to work. If in doubt run a separate earth wire from inside the headlight shell back to the battery earthing point on the frame. Do not rely on old wiring that often earths through the steering head bearings.
Base is P22D = push in, 22mm, Dual contact; P36d in USA; Original bulb number: 356