This LED bulb with replace the bulb in your British bike with the original equipment Lucas lens. This will work for either 6 Volt / 12 Volt Positive or Negative ground. Fits Lucas headlight unit. All LED bulbs here have a built-in IC drive to work with 6, 12, and 24 volts. 970 lumen and 510 lumen is equivalent to 18W / 7W. Replaces OEM Lucas part numbers 446, 414, 370, and 312

Note: There are no returns on carburetors, electrical items, full frames, hardtails or made-to-order items (such as magnetos) unless there is a manufacturer’s defect.