Universal USB charging - the rechargeable lamp is equipped with a USB adapter for charging. Even if you lose or forget to bring the adapter, you can still charge the light by connecting the cable to any USB port, including laptop, computer, mobile power supply, wall socket or power board. Portable - led night lights are battery powered. USB charging for up to 20 hours. As an ordinary bedside night light, you can always connect the light to the wall socket. You can disconnect it as needed and carry a portable lamp at night to increase safety. Or, take it as a backup light for camping outdoors. Dimmable - the bedside lamp has a built-in touch sensor dimmer with 3 levels of brightness, allowing you to easily change the brightness by touching the lamp. The lowest setting produce soft light and sleep better. Its highest setting provides additional brightness for comfortable reading or nursery purposes without disturbing your partner or baby. Essential for home - this novel lamp uses a smooth and low-key design to increase mood lighting and or without taking up much space. With its built-in battery, you can put the lamp anywhere, bedside table, shelf, desk, side table, dining table, etc