WE-EF / 195-0193 Installation blockout BTR25-II The installation of recessed wall and 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 I: Luminaire faceplate remains proud of wall or ceiling surface. Made from die-cast aluminium alloy and rugged MDPE (Polyethylene). Type II: For flush luminaire installation. Rugged MDPE (Polyethylene) body. Corrosion resistant diecast aluminium alloy mounting frame. Specifications: C1: 150 D1: ΓΈ 268 C: 150