Metal and glass. Opal diffuser. Features: Dimmer Compatible; Contemporary Design; Max. 20W; IP44; Zones 1 & 2; W x H: 88 x 302; Model No: HA-BLL912. Specifications: 12V. Transformer required. Cut-out dia. W x H: 245 x 65mm. Recess depth: 25mm. 2 x G4