... 60Hz, conserve 80% energy Article name: Full Spiral Energy Saving Lamp Power: 5W, 7W, 9W, 11W, 13W, 15W, 18W, 20W ... , 23W, 26W Diameter of Tube: 7mm, 9mm, 12mm, 14.5mm, 19mm Input voltage: 100V-230V ... : ≥8000h Base type: E14, E27, B22 Plastic material: PBT Tube powder: Tri-phosphor Inner packing: Color box or insert card ... carton or 50pcs per carton Full Spiral Energy Saving Lamp