small, easy to carry, high efficiency free maintenance water-proof and explosion-proof LED mining lampKJ4LM(A)KL4LM(B)KL4LM(T) ... distance)Beginning≥2000≥2000≥2000After 11 hours≥1100≥1100≥1100 LED light sourceRated voltage (V)3.53.23.5Rated current(A) ... suitable for mineral industry,tunnel projects,construction and maintenance for power,communication,highway,railway at night,night lamp for cutting ...