t8 to t5 fluorescent light Energy saving,high efficiency. replace T8 old tube 14w,28w,35w t8 to t5 fluorescent light Specification:14W, 21W, 28W, ... 35W1, Energy saving 45% than traditional T8 , T10 tube ... for standard quality9, Retrofitting T8 to T5 tube, direct plugged into the existing T8 light fixture.10, No labour ...