Our LED cap lamps are specially designed for underground mining, tunnel construction and hazardous working environments. Built with certified explosion-proof structure, high-lumen LED light source, long-lasting rechargeable lithium battery and dustproof & waterproof housing. Featuring lightweight body, comfortable head clip design to fix on safety helmets, multi-level brightness adjustment and long standby time. Safe, glare-free illumination provides stable lighting for coal mines, metal mines, road tunnels and underground engineering work.