... <10%, 3. 30000-hour rated life 4. CE,ROSH,Reach XGYT52004-B T5 Dual Tube FixtureCertificates: CE, RoHS, ENEC, GS,CB,ULProduct Advantages ... , PF≥0.99, THD≤10%, Life = 30,000 hours, TUV CE,CB,GS,ENEC,UL Certified;TUV Standard Ballast, PF≥0 ... .98, THD≤15%, Life = 20,000 hours, TUV CE Certified;Normal High Standard Ballast, PF≥0.95, THD≤30 ...