A. Rechargeable: This lamp comes with a 2000mAh battery, which offers relatively strong battery life and reduces the need for frequent battery replacement. It can be charged quickly via a 5V USB interface. B. Versatile: Due to the built - in rechargeable lithium battery, this lamp can be used in various places where it's needed, like bedrooms, cabinets, closets, workshops, garages, stairways, corridors, storage rooms, attics, kitchens, basements, refrigerators, etc. C. Easy to install: There are built - in magnets on the back of the lamp. It can be directly fixed on a metal surface without the use of screws or drilling holes. If one wants to install it on a non - metal surface, the included self - adhesive magnetic pads can be used. D. Dual touch sensors and five light colors: There are two touch sensors on the side of the lamp. The lamp can be turned on and off with a gentle touch. The light colors can also be switched as required by short - pressing the touch sensors. E. Adjustable brightness: The light brightness can be continuously adjusted by long - pressing the touch sensors (for about 3 seconds). The light it emits is pleasant, can illuminate the surrounding environment well without being too harsh, and can meet different usage scenarios, such as for reading or as emergency lights.