These new type explosion-proof safety helmet lamps incorporate the helmet, battery, cable and bulb together. They are suitable for night work conditions in mines, and can also be used for tunnel projects, in power stations, when installing telecommunications cables, for highway and railway construction, and when completing urgent repair work, anti-flood and rescue work, and shipping work. These lamps have the merits of high safety, convenience, high efficiency, being environmentally friendly, offering complete protection, reliability and economical performance. Rated voltage: 4.8V Battery capacity: 3.5Ah Light flux of bulb: >20Lm/h Life of bulb: 200T Current of bulb: 0. 30A Time for lighting: 5 - 11 hours Weight of battery: 0.21kg Total weight: 0.8kg Accessories: screwdriver, special charger, bulbs Belt hanging light battery available Inner Packing:1pcs/box Outer Packing:6pcs/ctn Carton dimensions: 73 x 30 x 36cm G.W. / N.W.: 9.5 / 10.3kg Min Order Quantity:100 - 500pcs Payment Term:L/C or T/T in advance Delivery Time: 20 days Price Term: FOB