... long lifetime guarantee 4.prompt delivery T8 fluorescent lamp lighting fixture 1..energy saving ballast; 2.Power:1x18w 1x36w 2x18w 2x36w ... 1x36w 2x18w 2x36wwire:copperlight source:fluorescentMatch Tube:T8 1.No, flicker,energy saving ballast,super quiet,saft and hight effect,low ... ,direct pulsion and rotation installation feature;5.magnetic or electronic ballast all matched6.CE, ROSH, SASO, TBS APPROVED