Refillable: With built-in 2000mAh battery, this light provides long battery life, and you don't need to change batteries. Just use a 5V USB for fast charging.Versatile: Thanks to the built-in rechargeable lithium battery, the light can be used anywhere you need it, such as bedrooms, cabinets, closets, workshops, garages, stairs, hallways, storage rooms, attics, kitchens, basements, refrigerator etc.Easy Installation: There is a built-in magnet on the back of Lamp. Without screws or drilling, you can fix it on metal surfaces directly. When it comes to non-metallic surfaces, you can rely on the supplied self-adhesive magnetic pads.2 Touch Sensors and 5 Lighting Colors: The lamp has two touch sensors on the side. You can turn it on or off with just one touch. If you short press the touch sensor, you can change the lighting colors as you need.Adjustable Brightness: By long pressing the touch sensor (3 seconds), you can adjust the light intensity continuously. It is a pleasant light that illuminates the environment well and does not dazzle. It allows you to use in all circumstances, eg. reading light, emergency light, etc.