... -phosphor fluorescent, AC 110V/220V, 8000h lifetime, save 80% energy. 2U Energy Saving LampPower(W)5W7W9W11W13W15WDiameter of Tube(mm)7/97/97/99 ... CardColor Box or Insert CardOuter Packing (PCS per Carton)5050505050502U Energy Saving Lamp :Power: 5W, 7W, 9W, 11W, 13W, 15WDiameter of Tube ... : Color box or insert cardOuter packing: 50pcs per carton. 2U Energy Saving Lamp