T8/T10, 4 FT. LED tube as Fluorescent tube replacement, This LED tube is ETL approval. Size 30mm diameter x 1200mm length, 300 LEDs, Warm white 2600k~3700k, 17W, 1200 Lumen, As 32W~40W Fluorescent tube replacement. 30mm diameter tube with G13 standard base, Plugs directly into fluorescent 2 prong receptacle. As T8, T10, T12 fluorescent tube replacement. Does not use energy wasting ballasts. It will be 55% Energy Savings, No fluorescent paint and gas contamination of premises, Green Light Source, Bypass Expensive Ballasts And Wire Direct. Wide voltage and constant current design, It can work on Mains voltage at AC110V, AC120V, AC220V, AC230V, AC240V, And all other mains voltage between AC85V and AC265V. See how to install it and replace it.