3 Levels Dimming & Night Light Mode: Easy to use, touching switch, 3-level dimming, with the darkest light, medium light, and the brightest light It meets all your needs for lighting You can use the night light when you are resting USB Charging: The darkest light source can work for 10 hours, the medium light source can work for 6 hours, the brightest light source can work for 5 hours, and the night light mode can work for 6 hours The charging time is 3 to 4 hours Small&Clip Design&Flexible Gooseneck: Clip design can be clipped on the desk and book, the angle of light can be adjusted at will, the light beam can be accurately aligned where needed Non-flicker Screen &eye protection LED lamp beads: Uniform illumination, close to natural light, soft surface, almost no ghosting, long-term use won't hurt the eyes