... than 50000hours Grid Light(1200*600), LED Light, grid lighting, grid lamp, Grid Light(600*600), LED Light, grid lighting, grid lamp,CCT ... Operation temperature: -20~55 Operation Humidty: 10~90% Housing: Aluminium alloy Housing Color: Silver/ White(Optional) Working Hour: > ... : Office Buildings,Shopping Mall,Factory,Corridor,etc.Grid Light(1200*600), LED Light, grid lighting, grid lamp,dreaminthebox.com