Features: 1) Flameproof, copper material, can be used safely and reliably in the place with explosive air mixature, with explosive matter IIA, IIB and temperature group T1- T4, in the cabin and in outdoor place 2) Protection: IP55 3) Explosion-proof mark: Exd IIB T4 4) Power: 24V 25W/220V 40W, 60W, 100W 5) Lamp holder: E27