Halogen 6 volt 10 watt 35mm diameter Beam Angle base GU4 = 4 mm pin centres uk light bulbs stock this popular rare hard to find bulb, used in many fibre optic Christmas trees as the light source, and many other decorations gu4 6 volt 10 watt lamp.

6 volt 10 watt MR11 halogen light bulb. 35mm Diameter Dichroic GU4 base  degree. Used in many decorative applications such as Christmas light fittings! Also used in cabinet lighting. for fibre optic trees and cycle lamps also used for cave exploration and diving.