A useful rear lamp and good reproduction of the Lucas MT110 model used on motorcycles, though offering other useful applications as additional number plate illumination etc. The prismatic red lens (32mm diameter) has a chrome rim, the black metal body ( 44mm diameter) has side number plate illumination. Double contact bulb holder - so stop/tail bulb compatible. The mounting flange (approx 65mm diameter) has three holes for fixing. It is designed so that the portion of lamp protrudes behind mounting flange by 23mm. The bulbholder is accessed by twisting off the rear flange body. Fitted with a 12 volt double contact equal pin BA15D base 21/5 Watt double filament bulb. For spare bulbs please see our B383 (6v) or B381 (12v). Wired with bullet terminals. Other equivalent Lucas part number 53009.