... , 20.000hours , 30,000hours T8/T5-28w with reflectorT5 Adapter ( T5 adaptor) (T8 toT5) ( T8/T5 ) (T5 Conversion Kit ) ... 36.7 watt to a 35w lamp tube , give 27.5 watt to a 28w lamp tube , give ... 22.3 watt to a 28w lamp tube7) Voltage optional: ... friendlier. Solid mercury, 38% less glass compared to T8.16) Improved light quality , no stroboscopic flickering, ...