This cap lamp's safety Lamp is a new environmental cap lamp, which adopts advanced LED light source and lithium ion battery to design and produces. It has the characteristics of small cubage, longevity, no pollution, free of maintaining, electricity-saving and safety and so on and so forth. This kind of portable product is used to illuminate for coal miners underground, and it can also be applied to the following terrible and disgusting occasions:field work at night, emergency rescues and disaster relief, inspection, surveying andexploration etc.