It is made of superior aluminium alloyed shell, longlife haloid strong-light bulb and high capacity high qulity chargable batteries. It is widely used in public security, military,fire control, custom, diggings, vehicle, fishery, open country, and standby for necessity in family, etc. Advantace:? Shell?made of aluminium alloy, has the quality of aging resistance, strike resistance, and longlife. Bulb?the reflector cup and the bulb is designed together, the light is focused whenever the bulb is lightened, avoiding adjusting the focus. The longlife haloid stronglight bulb(voltage: 6V, power: 8W) is used to get the extra range(the range at night is above 500 meters). Power?Five high capacity of 4500mAh batteries(the capacity is between 2500mAh to 8000mAh for your choice) is fitted together to be chargable nikle hydrogen or nikle chrome pile. The voltage is 6V. It can be continously lightened for 2 hours when the battery is fully charged. Charge?Before charging, contrarotating the head of the flashlight to seprate the bulb and the anode of the power. Whatever the flashlight is on or off, the high voltage of charging will not burn out the bulb, avoiding the trouble of turning down the flashlight.After charging, pulling out the pin and screwing down the head of flashlight .The pin is hided to resist the dust , sundries, water, etc. Waterproof?The flashlight using high quality rubber ring is waterproof. But it is not suitable for use in diving or underwarter working. Charge Process?First, contrarotating the head of the flashlight to bare the charging hole on the rubber ring, then plug the charger into the hole and plug the charger into the socket of voltage 230V, when the red light is on.After charging for about 10 hours and the flashlight is fully charged,when the red light is off, pull out the charger from the socket and then from the hole, then screwing down the head of flashlight. Notice? 1) Check the polarity of the battery before charging and lighting to ensure that the positive pole is farward and the cathode is backward. 2) It is better to discharging the battery completely before charging to ensure that the battery has better charging effect ang longer life. To turn on the flashlight above half an hour after charging will extend the life of bulb. 3) It is necessary to using the special charger. The temperature rising of the charger during charging is natural. Caution? Do not reverse the polarity of the battery when putting them into the flashlight.(it is right that the positive pole is farward and the cathode is backward.). Otherwise the battery will be mangled during charging. Do not put the battery anear the fire or high temperature material. Do not short it directly. Otherwise there is risk of exploding etc. Do not put the hand or other things on the bulb or the head of the flashlight for fear that they will be burned as the temperature is very high when the bulb works.