... three years warranty 4.Complied with TUV t5 electronic ballast 54w electronic ballast Power: 14w,28w,35w,54w,2 ... 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 ...