Genuine Lucas 7 Inch Headlight Lense/Reflector
Part Number 391-54522680
Uses replaceable 45/40 Watt Lucas 410 main bulb and has the pilot bulbholder to accept the above pilot bulb 392-989/A; has Lucas markings on glass. These are the exact same unit that was fitted by the Triumph factory to 1979 on T140 Bonnevilles and other models shipped to countries that drive on RH of road, but will work nicely on anything equipped with a 7 inch round lense/reflector unit and is superb quality and looks good.