- Personalized Brightness: The Opaul book light offers 3 color temperatures (yellow 3000K, hot white 4000K, cold white 6000K) and 9 brightness levels. Easily switch colors by pressing the button on the neck light and control brightness using the adjustable light arms. Perfect for nighttime reading without disturbing your partner. - Long Battery Life: Enjoy up to 80 hours of continuous use on a full charge, making it ideal for long reading sessions. - Flexible and Ergonomic Design: Constructed from lightweight ABS and soft silicone, this neck reading light is both durable and comfortable. The adjustable arms allow you to position the light at the perfect angle for your needs. The ergonomic neck design ensures a hands-free experience. - Eye Protection: Featuring enhanced LED technology, the Opaul book light provides wide, even, and soft illumination that minimizes glare and harsh shadows. Create a cozy reading environment without straining your eyes. - Versatile Use: This reading light is perfect for various activities such as reading books, knitting, or working on crafts. It makes an excellent gift for spouses, children, parents, or friends, offering both practicality and comfort.