Special design polycarbonate diffuser to optimize the LED light transmission. Slim profile design that is easily mounted to provide illumination performance while using significantly less energy, and useful for lighting in Passageways, Cabins, Lounges, Dinning rooms, and Accommodation areas. Long service life of 50,000 hours L70 @ 40ВєC. JIS and IEC safety and EMC compliance. 2 mounting holes О¦5.5mm. Material : Diffuser- Polycarbonate, Housing- Galvanized steel, powder coated white. Protection Class : IP20 in conjunction with ceiling. *Note : Replace whole unit when light not working.