Large sidelamp similar to Lucas type VS45, 90mm diameter x 85mm deep, with glass lens. we offer these lamps finished with black body/chrome rim, all chrome or all nickel. mounting bolt 14mm diameter. these units will accept parallel pin double filament 5/21w bulbs thus indicators can be incorporated within the sidelamp. Uses a BA15d bulb, for spare bulbs please see our B383 (6v) or B381 (12v).