uv lamp electronic ballast 1.CE,CB,SAA,ROHS,ISO9001 approved 2.OEM,high quality 3.PF:0.98,THD:15% 4.Voltage ... :120V or 230V uv lamp electronic ballast1.for UV lamp 7W,9W,11W,13W,18W ... .Ingress protection:IP20Features of electronic ballast:1. Favorable low voltae starting performance,start the lamp under 130v low voltage, ... >0.98 7W 9W 11W 13W 18W uv lamp electronic ballast