led t-bar panel light 1.lifespan>50,000 hours 2. 2yrs warranty ... .4.The outer type constant current power supply ,instantly start ,no noise ,the input voltage AC85-265V.5.Easy installation :insert the ... Residential Buildings, Home, Office, Meeting Room , School, Library, Factory, Warehouse, Hotel, Casino, Parking Garage, Hospital, Commercial Center, Supermarket, Shopping mall etc ...