The LED night lamp is equipped with a 1200 mAh rechargeable battery, The lowest setting generates a gentle light for better sleeping. The nightstand lamp is built-in sensor dimmer with 3-levels of brightness which easy to change the brightness by tapping the lamp. Its highest setting provides extra brightness for comfort reading or nursery purpose without disturbing your sleeping partners or babies. This novelty lamp has a sleek and low- which adds a mood light to embellish your home or office without taking too much space. Portable: The LED night lamp is equipped with a 1200 mAh rechargeable battery, You may connect the lamp to wall outlet all the time as a regular bedside night lamp. You may disconnect it as needed and carry the portable lamp during the night for extra safety, or to outdoor camping as a spare light. Universal USB Charging]It comes with an USB adapter for charging,even if you lost or forgot to bring its adapter, you can still charge the lamp by connecting the cable