CFT1 fits for the explosive gas place(zone1,zone2)with temperature group T1-T4,also is suitable for remote illumination in ship,petroleum platform etc.the shell is cast with aluminum alloy,equipped with light source self-ballast mercury light and incandescent bulb.if high-voltage mercury light or metal halide lamp is needed,an explosion-prof electric box should be equipped additionally,gland is copper,screw is M27×2,fit for cable φ12-φ14.5mm.