... oxidation film, can improve the lamp luminous flux from 90Lm/w to 110Lm/w , better brightness.7, With reflector, the light efficiency can ... 8, Electronic ballast 2years warranty for standard quality9, Retrofitting T8 to T5 tube, direct plugged into the existing T8 light fixture ... .10, No labour and no modification cost to the existing T8 light fixture.11, PC inflaming retarding converter ...