USB charging type and battery type combined - there is a switch hole and a charging port on the outside of the lamp body. This product is 180 degree adjustable and can sense people's movement .The internal battery does not need to bereplaced, but the external battery can be used. The USB charging cable is convenient and convenient to charge. Night Human Sense Sensor: It has the function of auto light on and auto light off. Human action is noticeable within a radius of 3 to 5 meters and automatically lights up. If you don't feel this action around20 seconds after automatic lighting, the light will automatically turn off. Built-in light-sensing resistor that only glows at night and in the dark. Double-sided tape and tape: According to the magnet on the back of the accessory, it can be mounted anywhere as long as it is iron flat. Two side strips and magnets can be mounted wherever an auxiliary lamp is needed. Even plans likewalls and beds can simply be glued together. Available in different locations, be sure to try it. Wide application: weight about 150G. Due to its light weight, it can be quickly transported and installed anywhere. Even kids who don't have access to a big, heavy flashlight can use it. Often, like a lampreading light, step light and night light, it can be easily installed in places such as children's room, stairway, hallway, basement, warehouse, wardrobe, hall bath, etc.