1)Type: energy saving lamp 2)Voltage: 110 - 130V, 220 -240V.Frequency:50/60Hz ... 3)Light efficiency:60Lm/watt 4)life:8000h energy saving lampVoltage:100-130V/ 220V-240V, 50/60Hz,Wattage:11W,13W ... : E27,B22,E14Light efficiency:60Lm/wattLife:8000HoursUp to 80% energy saving---- Different Lamp for different marketOEM acceptedCertificate : CE, EMC , UL ,ROHSPassed ...