Specifications:1) Tube diameter: 9, 12mm2) Power: a) 9mm tube: 5W,7W, 9W, 11W, 13W, 15W b) 12mm tube: 13W, 15W, 18W, 20W, 24W, 26W 3) Voltage: 110 - 130V / 60Hz, 220 - 240V / 50Hz4) Color temperature: 2,700K / 4,200K / 6,400K5) Lamp base: E14, E27, B226) Average lifetime: 3,000hrs, 5,000hrs-6,000hrs, 8,000hrs7) Color rendering index: CRI>80 8) Garrantee lifespan: 15 monthsInner packing:Color box with print as per customer's advice