Downlight for: MR11/GU11 light bulbs (for GU11 bulbs the GU10 socket needs to be purchased separately) Socket: GU4 (MR11) included Colour: chrome, graphite, white, black Material: aluminium Bulb diameter: 35 mm Mounting hole: 40 mm Dimensions (length x width x height): 55 x 55 x 27 mm Regulation: No Weight: 101g Shape: square