Product features: ■ The Promise light source, long life, maintenance-free. ■ type of protection for complex lighting or dust explosion-proof, suitable for gas or dust explosion hazard lighting. ■ Lighting by light chamber, the chamber and the electrical wiring cavity structure, enclosed design. ■ lamp housing is made of aluminum die-casting, electrical cavity containing ballast, terminals and other electrical appliances, wiring cavity containing user terminals. Light inside the cavity with a mirror reflector lamps outside surface of polyester powder coating. ■ polycarbonate through the mask, high transmittance, good impact resistance. Electric cavity structure for the side openings. ■ lamps have good corrosion resistance, high luminous efficiency, wide illumination range, soft light of the advantages of durability. ■ Lighting has rubber gaskets, seals, reliable, good protective properties. ■ apply Ⅱ A, Ⅱ B, Ⅱ C class with explosive gas or steam environment, temperature class T1-T4 1 and Zone 2 hazardous locations inside and outside, or 20, Zone 21 and Zone 22 explosive or combustible dust indoor and outdoor lighting places.