... Holder- T5 Tri-phosphor Tube Included, choice of 10,000h or 20,000h- Ceiling mounted or Pendant Mounting ... Available:IC Standard Ballast, PF≥0.99, THD≤10%, Life = 30,000 hours, TUV CE,CB,GS,ENEC,UL Certified ... Ballast, PF≥0.98, THD≤15%, Life = 20,000 hours, TUV CE Certified;Normal High Standard Ballast, PF≥ ... 0.95, THD≤30%, Life = 15,000 hours, Pass EMC and LVD Testing;Normal Low Standard ...