2 feet cold cathode T8 tube lamp 1,40% energy saving than normal T8 2,50,000hrs lifespan 3,CE,SGS,FCC,PSE 4 ... ,3 years warranty 2 feet cold cathode T8 tube lamp (manufacturer) Technical parameters: ModelPowerSizeInput voltageInput currentFrequencylamp baseCRILuminous FluxLifespanColor temperaturePF ... ,conference room etc.Warranty: 3 years !!! : 2 feet cold cathode T8 tube lamp (manufacturer)