... IIA,IIB,IIC Temperature classes T1~T6 High brightness module LED light sources Designed for petroleum, storage, chemistry, medicine, military ... and cementing explosion proof structure with good explosion proof performance LED mounting base is of heat high conducting material can ... voltage: AC 100~270V Light sources: LED Lighting efficiency: 90lm/W Rated power:20W,30W,40W Power factor:0.95 Color ...