1.csl auto led light bulb 2.t8 osram led tube 3.office lighting 4.led e14 24v ac Product Feature1. ... warranty of 3 years.5.Longer life than a fluorescent tube:min.50,000hours6.70%-80% Energy-saving over fluorescent tubes ... . It is widely used for lighting in factory, supermarket, school, hotel, home, office, exhibition, etc. t8 led red light tube led headlight bulb ...