miner's lamp is a portable light in mine which is with LED as light source and with Lithium battery as power. It is a special electrical equipment. It applies to the lighting work of coal mines, metal mines and other underground work, also some place needs moving light. And the work environment temperature is -10℃～40℃.
Specification
| No | Parameter | Unit | Data | Remark | |
| 1 | Rated voltage | V | 3.7 | | |
| 2 | Rated capacity | Ah | 4 | | |
| 3 | Max Illumination at 1m | Begin lighting | Lx | ≥1000 | |
| Lighting 11h | Lx | ≥800 | |||
| 4 | Dimension | Length | mm | 107 | |
| Width | mm | 84 | |||
| Thickness | mm | 42.5 | |||
| 5 | Continuous discharging time | h | >15-20 | | |
| 6 | Rated current | A | 0.025 | | |
| 7 | Battery life | times | ≥500 | cycles | |
| 8 | Work environment | ℃ | -10℃～40℃ | | |
| 9 | Relative humidity | | 45%～95% | | |
| 10 | Weight | g | 400 | | |
