... %,THD<10% 4.Energy saving to over 40%, 25000hrs t8 to t5 adapter 35w 1.T8-T5 adapter Power 14w,21w,28w,35w,54w2 ... .T8-T5 adapter Power Factor PF>95 ... 2.5 years Power Factor0.99Optical Data :Light Color Warm White,Cool White,DaylightColor Temperature 2700k,3000k,4000k,6400kBeam Angle 45 ...