Quality, Value, Experience from Trusted UK Seller Adjustable high-voltage spot LIGHT EYE 150 with suitable adapter for the 3-circuit high-voltage track system. The round-shaped luminaire is made of steel and, thanks to the built-in GU10 socket, is suitable for both halogen and LED lamps with a diameter of 11.1cm. This luminaire is compatible with bulbs in energy classes: E - A++ ES111 Lamp not included.