... Bulb Shape: T8 LED Tube 2FT/3FT/4FT2. Base Type: G13,Cover type:Clear/Frosted3. Luminous efficiency: 100lm/w4. Energy Consumption ... LonENife time more than 50,000 hours under normal use, especially for office lighting.4. Optimized light extraction ... 1200mm,1500mm,1800mm,2400mm etc.LED Tube Application : Widespread use in family ,SchoolOffice,Showing Room ,Meeting RoomCommercial Building ,Tower,Hotel ...