Dimensions: 10W x 7.5D x 5.5H in.. Shade dimensions: 10W in.. Base and shade crafted with metal. Choice of finish. Full-range dimmer switch. Requires one 50-watt halogen bulb (included). Get the light you need to read your sheet music with the House of Troy Grand Piano GPH10 Clamp Lamp. This halogen light easily clips onto your music stand and features a full-range dimmer located right on the shade for the easy adjustment of the light. Color: Black.