| 1.Opetional wattage:20w 24w 26w 28w 32w2.Opetional voltage/frequency:110 to 130v or 220 to 240v, 50Hz3.Optional color temperature:2700K/4000K/6500K4.Optional base:E27/B225.Average life:6000hrs/8000hrs/10000hrs available.6.Optional packaging:Blister/Color box/Color box+PET available.7.Certificate of the system of quality certification:CE/ROHS/EMC/ISO9001/GS etc. | 
