... CE,ROHS ISO9001 approval; 2)up to 80% saving,8000hours; 3)cheaper price 2U Energy saving lamp1.Supply voltage: 100-130V, 50-60Hz ... /E40/B22;5.Plastic covers :PBT , PC,PP etc;6.Tube powder:Pure Tri-Phosphor color Powder, composite color power, halogen ... powder etc;7.High Lumen Maintaince;8.Tube Dia(mm): φ10 φ12;9.Life span : 3000 hours /6000hours/ 8000 hours;Saving energy 80%;