... 18W-1200mm 2,Emergency&General Lighting, new rotating end cap 3,Input Volt:AC100-240V 4, ... 18W 1200mm ( Emergency&General Lighting LED Tube )When suddenly an earthquake or other natural disasters coming ... damaged,so common emergency tube cannot work. When power-off , these tubes can provide 2-5 hours ... and Emergency LED tube 2, Newest Lockable rotating end caps3, PC cover: frosted/clear4, Material: AL ...