... use solid-stated mercury, 38% less usage of glass and phosphor powder compared to T8 lamps. 5, Good Color Rendering Index >80Ra6 ... for eyes 8, No labour and no modification cost to the existing T8 light fixture 9, slim and light weight 10, CE, RoHS ... , store, house, project energy conservation improvement and so on T5 integrative system To replace T8 tube To replace T10 ,T12 tubes 14W 18W ...