With more than 400mAh high rated capacity hermetical rechargeable lead acid battery; The long life battery is able to be circularly used for 500 times between charge and discharge; With recyclable, high brithness, long life, save energy 0.5W LEDS, it is able to light much more longer; With special reflector, the lighteness is better and much more concentrated, the range is much more longer than the normal one.