Miner's lamp KJ4.5LM(A) is a new type of miner's lamp. It is made based on the power supply which is Nickel Hydrogen obturated storage battery, and its lamp-house is LED semiconductor illuminance.Rated voltage:3.75V Rated capacity:4.50Ah Lighting length: equal /above 13hours Illuminance :begin to light : equal/above 1600Lx after11hours: equal /above 1000Lx1) Operated by Ni-MH sealed storage battery, Features:1. Power supply is Nickel Hydrogen closed power. It has the characteristics of maintenance-free, high-energy, longevity of service, light-weight, no leakage, environmental protection and safe. 2. Used import advanced semiconductor LED lighting. The virtue of it is luminescence economize on energy, high-efficiency of luminescence, longevity of service (it can use more than 20,000 hours)and safe. 3. Used two different lightness LED lighting inside the lamp. It could switch by the switch ,and the subsidiary lighting can continue to use for more than 35 hours. 4. The new type of miner's lamp is maintenance-free in using life. 5. Good color-rendering properties of light source and penetrability specialized in dust or fog environment. 6. Installed a short-circuit protection in circuit of electrical source which has high-sensitivity, it could switch off the electrical source within 15 milliseconds automatically. 7. Humanity and green environmental protection: it's weight is only sixth of lead 2 acid miner's lamp-about 500 gram. It is portable and easy use. No leakage, no empoison Packing: White box.