... life Competitive price high lumen output OEM accepted Energy Saving Lamp 2U Series--------- -SpecificationWattage Available3w,5w,7w, ... & 220-240V/50HZProduct ApprovalsCE,ROHS,ISO9001:2000 Energy Saving Lamp 3U Series Specification Wattage Available7W,9W,11W,13W ... 60Hz & 220-240V/50HZProduct ApprovalsCE,ROHS,ISO9001:2000 Energy Saving Lamp 4U Series --------- - Specification Wattage Available9W,11W,13W, ...