LED Fluorescent T8 Bulbs 1,General& Emergency led tube 2,Power:9W-600mm 3,Newest design LED Fluorescent T8 BulbsL05G-I33V 22W 1500mm ( Emergency&General Lighting LED Tube )When suddenly an earthquake or other natural disasters coming, the power lines of the central power supply are easy to be damaged,so common emergency tube cannot work. When power-off , these tubes can provide 2-5 hours lighting ...