... .30000hrs, three years warranty 4.Complied with TUV t5 electronic ballast 54w electronic ballast Power: 14w,28w,35w,54w,2*14w,2*28w ... ,2*35w,2*54w electronic ballast Features: 1.electronic ballast High Power Factor(PF>95%,THD<30%) 2.electronic balalst Low harmonic,low ...