9w full spiral lamp 1.Certification:CE SGS IS9001 2.more ... power:11w5,lumens: 385lm-467lm6,power factor: 0.557,base:E27,B22,E148,plastic: PBT, PC9,tube diameter: 9mmadvantage:1 ... candle serial.bulb serial energy saving lamps .we go to canton fair every year .Our key business objectives ... are:1 To Know our customer.2 Provide Quality Services.3 To Build Solid Relationships. 11w 9mm ...