For use in spot and general lighting. An ideal problem solver for ceilings with low installation depth. Front glass and heat sink made of aluminum. The fixture is only suitable for installation in the false ceiling. When installing, ensure minimal convection and do not cover with insulating material. Installation boxes: in general, the LED downlight can be installed in all common concrete installation housings. Specifically tested types from KAISER include: HaloX® 100 with Tunnel 190 (Type 1281-30) + front part, example Type 1281-11/HaloX® 180 with Tunnel 190 (Type 1282-72/1282-75). Material: aluminum die-cast/glass. Surface: powder-coated or galvanized. Suitable for installation diameter: 68 mm. Color rendering index Ra: 90. Color distance (MacAdam): 3 SDCM. Lifespan: 50,000 h (L80 B10). Recommended operating temperature: Item No. 8999038350 EL-8R-350 non-dimmable, Item No. 8999028350 EL-8R-350 D dim C, dimmable via phase-cut.