... , can improve the lamp luminous flux from 90Lm/w to 110Lm/w , better brightness.7, With ... 17%~20%8, Electronic ballast 2years warranty for standard quality9, Retrofitting T8 to T5 tube, ... PC inflaming retarding converter lampholder12,Installation: Mounting by screw fixing or series connection.13, TUV, CE, ... hoursRelevant Certificate TUV-CE, RoHS,Warranty 2.5 years Power Factor0.99Optical Data :Light Color ...