Create this LED star night light with timer to let kids sleep at night without worrying about when parents turn off the lights. You can set the sleep time from 5 minutes to 95 minutes, and then enjoy the big cosmic stars and moon nights. It was a wonderful night of sleep. 2 Power Modes: Powered by 4 AAA batteries (batteries not included). A more energy efficient way is to supply power via a USB cable connected to a wall, laptop or power bank (USB plug not included) The latest generation of power beads are brighter, prettier and have a larger projection range. Stimulate your child's imagination: This is a new popular star projection lamp, it can help you enjoy the fickleness of the beautiful starry sky without going out to find the vast world. Children will be delighted to bring home the starlight, which also enhances their imaginations. Size: 13.7x15cm