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Coal Miner"S Working Helmet Lamp Mining Head Lamp With Wholesale Price
| Version | Standard version (ATEX) | Long version | Super Long version | ATEX(Group II) |
| Rated capacity | 14000 mAh | 14000 mAh | 14000 mAh | 14000 mAh |
| Rated voltage | 3.7 V | |||
| Continuous discharging time | 13 H | 16 H | 24 H | 13H |
| Main light LED working voltage | 3.0 V | |||
Main light LED working current | 1.08 A | 0.89 A | 0.64 A | - |
| Main light power | 3.24 W | 2.67 W | 1.92 W | 3 W |
| Main light luminous flux | 512 lm | 430 lm | 340 lm | 359 lm |
| Lamp lighting degree (Initial lighting degree in 1 m) | 28000 Lux | 24000 Lux | 18000 Lux | 25000 Lux |
| Main light life span | 100000 h | |||
| Auxiliary light power | 0.4 W | |||
| Auxiliary light life span | 40000 h | |||
| Short circuit protection time | < 320 μs | |||
| Life span of the battery (Recharges) | 1200 cycles (In reasonable working condition) | |||
| Charging time | 5 h | 4 h | 4 h | 4 h |
| Dimensions | 108x94x36mm | |||
| Weight | 475 / 500G ; 16.76 / 17.64 oz | |||