Care for your eyes and enjoy your reading time: Flicker-free and blue light filter design with advanced LED lamp beads. Whether you are a child or an adult, your eyes are no longer tired. At the same time, this upgraded book light stimulates your body to naturally produce more melatonin. You will have a good sleep after reading this. 3 COLORS AND MULTI-LEVEL BRIGHTNESS ADJUSTABLE: 11 LED bedside reading lights have 3 modes: warm color mode (2700K), warm white mode (4000K) and natural mode (6000K). Each mode has multiple brightness levels. The dimmable book light is bright enough for reading, knitting, sewing, and crafting, or dimmed so as not to disturb others. RECHARGEABLE AND LONG LASTING: This book lamp has a built-in 1800mA rechargeable battery. It offers up to 100 hours of reading time on the lowest setting and 10 hours on the highest setting. This means that if you read for 30 minutes a day, you'll need at least another two weeks to recharge. ULTRA LIGHTWEIGHT AND ERGONOMIC DESIGN: The reading light is only 5 ounces. The lightweight and compact reading book lamp requires only a small space and can be easily carried. The arms are soft and adjustable so you can find the most comfortable angle. Ergonomic neck design, completely freeing your hands! It can also be placed on your desk or desk. very convenient.