TRLIFE is an advanced LED lighting company, we integrate factory, product development, and trade to provide customers with higher quality LED lighting products. TRLIFE T8 4 Foot LED light tubes use high quality LED chips, save energy, no noise, no flicker and long lifespan , which has high brightness, low degradation and longevity, great replacement of the traditional T8/T10/T12 fluorescent light tube. Widely used in shop, warehouse, workshop, classroom, garage, mall, hotel etc. Specifications: Wattage: 28W 6000K Cool White Base Type: G13 Bi-pin Tube Length: 4ft Lumen: 3360Lumens(120Lm/watt) Input Voltage: 85-265V Package Quantity: 4 Pack Features: *Dual row LED chips design *High efficient output, 120 Lumen/Watt *Clear cover for more bright light output *Low power consumption, cut energy costs by 65% *Long lifespan: >50,000 hours Easy Ballast Bypass: 1. Shut off power and remove existing tubes, then disconnect all of the wiring from both sides of the ballast and remove the ballast. 2. Connect the Live wire and Neutral wire from the power source to the corresponding socket (Live wire connect to one side, the N eutral wire connect to the other side). 3. Install this T8 4ft LED tube lights onto the bracket.