T8 to T5 Lamp Adapter WITH high quality,high luminous efficiency,lengthen life-span,save energy,save your money T8 to T5 Lamp Adapter1.material:aluminum ... alloy of high quality.2.due to T5 fluorescent lamp made of pure tri ... "s advantage is lengthen life-span5.with T8/T5 fluorescent lamp adapter,14W could replace 18W/20W,28W could replace 33W/40W ...