Top quality two tube electronic ballast 1.watts:2x20w/2x30w/2x40w 2.power factor:0.99 3.OEM service provided. Top quality two tube electronic ballast1.high power factor,energy-saving2.quick start,no stroboflash,no noise3.convenient fixing ,easily control,4.long service time5.high qualitymodel can reach CE & RHOS standardTop quality two tube electronic ballastModelWatts(W)Pcs/CtnPower factorEBAL- ...