4FT T8 LED tube lighting 1). 30000hrs lifespan 2). SMD3528 LED chips 3). 2ft 3ft 4ft LED tube 4). 3 years warranty 4FT T8 LED Tube Lighting LED tube lighting ... .Variety of length to be choosed:300mm,450mm,600mm,900mm,1200mm,1500mm,1800mm,2400mm etc.LED Tube Application : Widespread use in family ,SchoolOffice ...