... :10000HourT5 TO T8 adapter feature1, Energy saving 30%~45% than traditional T8, T10 tube. 2, Good quality with ... 38% less usage of glass and phosphor powder compared to T8 lamps. 5, Good Color Rendering Index >80Ra6 ... slim and light weight 10, CE, RoHS approvedHow to replace(use T8-T5 fixture) 1, turn off ... improvement and so on T5 integrative system To replace T8 tube To replace T10 ,T12 tubes 14W 18W ...