... hrs.4, Convenient to deliver. Ervan LED Tube sdopts special PC(Polycarbonate) plastic with soft light, it is unbreackable, shake ... pc lens with double side lighting, more energy efficient and save space.2, Environmental friendly, no ultraviolet, no infrared ray ... radiation, no mercury.3, Long lifespan: >50,000hrs4, High brightness, adopts high quality LED chip with about 24mA ...