... for power,communication,highway,railway at night,night lamp for cutting off rubber plant and absorbing mucus ... battery has short-circuit protection device.When miners lamp occured a short-circuit,it can cut off the ... battery has IP54 waterproof class.2. LED:it adpot 1W high-power LED,The life is more than 50000 hours ... ,then it is going into normal charging . KL2.5LM Safty hat with miner lamp