... , Double-sided PC cover 3, lockable rotating end cap 4, Isolated driver high lumen led light 1, Ervan LED Tube is ... features) :1, Double-sided PC Cover2, Latest lockable rotating end cap, newest attractive and unique design3, Isolated power supply4, Euripean ... , no mercury.3, Long lifespan: >50,000hrs4, High brightness, adopts high quality LED chip with about 24mA current.Very strict testing steps, and ...