WE-EF / 134-1641 Installation blockout BDO11-III The installation of ceiling luminaires is often problematic due to rough site conditions during masonry works. WE-EF has developed this unique range of installation blockouts, to be integrated in concrete structures during the initial phase of construction. Later, after the site has been cleared of mortar, sand and debris, the electrician can unpack the luminaire for a fast, easy and cost saving installation. Type III: Installation blockout for flush installation, with shadow line. Luminaire faceplate remains flush of wall or ceiling surface with shadow line. Made from galvanized steel and rugged MDPE (Polyethylene). Frame die-cast aluminium alloy. Powdercoat finish in RAL9004. Specifications: A: 333 B: 232 C1: 172 D1: 117 D2: 148