Kohree 3.7V 3500-7000LUX Mining Camping Hiking Hunting Light Miner Headlight Cap Lamp Small size, light weight, long service life, free of maintenance, environmental protection Designed based on GB7857-2003 General requirements for safety of miners lamp and MT927-2004KL miners lamp Can be applied in flammable and explosive environment such as coal mines, chemical industry, oil and road transportation, also can be applied in other mobile lighting places A new type of environmental-friendly lamp, which is adopted the most advanced 1w LED made by Lumileds Lighting Company and lithium batteries Got flameproof certificate ratified by National Coal Mining Machinery Quality Supervision and Testing Center