... :AC100-240V 4, 2100 lm +/- 10% tube light ,L05G-I33V emergency and general lighting led tube, 18W 1200mm L03-33V 18W 1200mm ... central power supply are easy to be damaged,so common emergency tube cannot work. When power-off , these tubes can provide ... /CTNCarton measurement134*47*26cm Features1, Dual function,--common LED lighting and Emergency LED tube 2, Newest Lockable rotating end caps3, PC cover ...