miner's lamp which is used for the safe lighting,the detection of methane concertration warning in coal mines . Miner’s lampKL2.5LM(A)1 ... 10V. with charging instructions, when charging, there are red LED instructions, after it is full, the red light is ... the cooling efficiency and extends the service life of LED.3. Main technical parameters No.ItemsUnitsValue1Rated voltageV3.72Rated capacityAh2 ...