adapter t5 lamp ,used for replace T8 tube, energy saving up to 45% ... 14w,21w,28w,35w,54w2.Power Factor PF>95%,THD<30%; PF>99%,THD<10%3.Type Reflector; Short reflector; Without ... )Energy Saving It saves energy over 45% than traditional fluorescent lamp b)High Efficiency and Good Color Rendering Light efficiency over ...