Model: BT, T Life: 2000hrsVoltage: 110-130V/220-240V; Base: E27, E4060W, 100W, 150W, 200W, 250W(E27)500W, 1000W(E40)transparent, milkwhite sandishBeing bright, it can take the place of traditional incandescent lamp.It can be directly mounted on line voltage. No transformer is needed.Compared with incandescent lamp, it has 15% higher brightness.