... Water-proof and shock-proof Long life and environment protection LED mining lampKJ4LM(A)KL4LM(B)KL4LM(T)Battery rated ... battery, security device and the battery slot, etc.)...The lamp is equipped with specially designed optical system,with primary and ... : -10 ~ 45 degrees Usage:It is suitable for mineral industry,tunnel projects,construction and maintenance for power,communication,highway,railway ...