This mining light is designed based on many standard. Small, light, convenient to carry, long using life, high lighting, fast charging, maintenance-free, etc.
If the main power source is broken or worn out,you just need to slide the switch to other direction, the other secondary source would provide more than 30hours light source. This product have set an methane alarm system, when turn on the light, the methane test circuit begin to work.

Main technical parameters
Rated voltage:3.7V

Rate capacity: 6 Ah

Lighting hours:>24

Max lighting distance:at beginning:>3000 lx; after 11hours: >2500 lx

Detection range:0~3%CH4

Alarm point :1.0%CH4

Alarm point permissible error��0.1%CH4

Response time:>20

The life span of storage cell: >500 times(charge-discharge cycle number.)