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 | 5 | | |
| 3 | Max Illumination at 1m | Begin lighting | Lx | 1600 | |
| Lighting 11h | Lx | 1100 | |||
| 4 | Main light Power | W | 1 | | |
| 5 | Continuous discharging time | h | >20 | | |
| 6 | Main light power LED working current | A | 0.37 | | |
| 7 | Main light power LED working voltage | V | 3.3V | | |
| 8 | Main light Luminous flux | Lm | 110 | | |
| 9 | Accessory light Power | W | 0.4 | | |
| 10 | Main light Usage life hour | h | >30000 | | |
| 11 | Accessory light Usage life hour | h | >20000 | | |
| 12 | charging time | h | ≥6-8 | | |
| 13 | Battery life | times | ≥600 | cycles | |
| 13 | Weight | g | <550 | | |
