Headlight approved E4 high quality in chromed steel with side mounting. Parabola in smooth glass with sidelight/hi/lo. Mounts a H4 bulb / 12V 60 55W (included). Outer shell made from chrome-plated steel with blue light indication light on/off placed on top. Diameter Ø 15cm (5-3/4") - Maximum Depth 125mm - Distance from mounting points to rear end 55mm.