This product is suitable for underground coal mines, tunnels, chambers, substations and other places with explosive gas mixture of methane and coal dust as emergency lighting instructions and emergency exit instructions. 1. The LED light source radiator is formed by cold forging of aviation aluminum, which has the characteristics of light weight and fast heat conduction; 2. The shell is made of high-quality aviation aluminum, and the surface is treated with plastic spraying; 3. The transparent parts are made of high borosilicate material. Tempered treatment, light transmittance up to 95%, strong impact resistance and corrosion resistance; 4. The LED light source adopts the Philips high-efficiency series brand, which has high luminous efficiency, aging resistance, energy saving and environmental protection; 5. The LED driver adopts a wide voltage and constant current design , The power is stable without attenuation, no stroboscopic, and has overload, short circuit, high temperature self-protection functions; 6. The product surface light source structure design, the effective utilization rate of the irradiation area is over 98%, and the plane lighting effects are fully utilized.