... IIB,IIC Temperature classes T1~T6 High brightness module LED light sources Designed for petroleum, storage, chemistry, medicine, military ... area Integral structure, fully separated electric compartment and lighting sources compartment, prefer heat conducting design the circuit boards ... : ExdIICT6/DIPA20TA, T6 Rated voltage: AC 100~270V Light sources: LED Lighting efficiency: 90lm/W Rated power:20W,30W ...