Product FeaturesOptional metal fire dome for the LBC3086/41 ceiling loudspeaker to prevent fire from spreading through the speaker cavityEasy assembly by clicking into the mounting ring via three leaf springsTwo knock-out holes for two grommets (supplied) and two cable glands (PG13)SpecificationsDimensions (dia. x max. depth): 157 x 70 mm (6.2 x 2.8 in)Weight: 360 g (0.8 lb)Colour: Flame red (RAL 3000)Certified: B15 acc. to DIN 4102 SKU: BOS.LBC3081/02 Color: Red Amperage Rating: 15 A Dimensions: 157x70mm Material: Metal Brand: BOSCH Supplier Part Number: LBC3081/02