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.2.power factor selection:PF>0.6 or PF>0.982.Long life low current wave peak3.High Power factor4.Low Total Harmonic Distortion,low lamp current crest factor5.EMC effection:Pass6.Comply to EN 61347-1,EN 61347-2-3,EN 55015, ...