... with Lithium battery as power. It is a special electrical equipment. It applies to the lighting work of coal ... case is made of Bullet-proof ABS Material. Excellent toughness, Anti-static, waterproof, and moisture-proof, the miner's safety is ... helmet lamp, cordless rechargeable led lamp, underground mine lamp, explosion proof luminaire, rechargeable led headlamp,coal mining light, coal miner lights ...