t5 electronic ballast 54w 1.Power:14w,21w,28w,35w,54w 2.PF>98%, ... 2*14w,2*28w,2*35w,2*54welectronic ballast Features: 1.electronic ballast High Power Factor(PF>95%,THD<30%) 2 ... .electronic balalst Low harmonic,low work temperature,low voltage start, ... no flicker 3.electronic ballast Protection for high voltage and high current 4 ...