... 3, lockable rotating end cap 4, Isolated driver high lumen led light 1, Ervan LED Tube is designed to replace the ... Ervan LED Tube sdopts special PC(Polycarbonate) plastic with soft light, it is unbreackable, shake-resist, and applicable to every field ... ray radiation, no mercury.3, Long lifespan: >50,000hrs4, High brightness, adopts high quality LED chip with about 24mA current.Very strict testing ...