2U energy saving lamps : CE, RoHS cetificate, take tri-phosphor fluorescent, AC 110V/220V, 8000h lifetime, save 80% energy. 2U Energy Saving LampPower(W) ... CardColor Box or Insert CardOuter Packing (PCS per Carton)5050505050502U Energy Saving Lamp :Power: 5W, 7W, 9W, 11W, 13W ... : PBT Tube powder: Tri-phosphor Inner packing: Color box or insert cardOuter packing: 50pcs per carton. 2U Energy Saving Lamp