... cathode T8 tube lamp 1,40% energy saving than normal T8 2,50,000hrs lifespan 3,CE ... FCC,PSE 4,3 years warranty 2 feet cold cathode T8 tube lamp (manufacturer) Technical parameters: ModelPowerSizeInput ... hurt the skin;- 80% energy saving than incandescent lamp,40% energy saving than common energy saving lamps ... ,conference room etc.Warranty: 3 years !!! : 2 feet cold cathode T8 tube lamp (manufacturer)