50pcs/lot kl5lm cordless led headlamp new rechargeable waterproof explosion-proof 5w mining cap lamp with strobe light

usage:
it is suitable for coal mine, mineral industry, tunnel projects, construction and maintenance for power, communication, highway, railway at night, night lamp for cutting off rubber plant battery (lithium ion)
it adpots new style lithium ion battery which is with over-charging, over-discharging and a short circuit protection function. led: it adpots 5w high-power led, the life is more than 100000 hours it adpot isopiestic pressure current limiting charging way. it`s setting value volatge is 4.2v(normal charging voltage is 4.2v)..syi