Unlike other bedside reading lamps, neck lamp has 3 useful color temperatures: yellow and cool white. It has 3 brightness levels per arm and different combinations of reading lamp settings according to your needs. For example, yellow light for general reading; warm white for studying; cool white for precision sewing or crocheting. Compared to other Micro-USB book lamps, our USB-C rechargeable LED reading lamp is user-friendly and safer for the elderly and young people. That's because USB-C is a one-size-fits-all design, easy to plug into any side. In addition, the built-in 1000mAh battery provides a battery life of 80 hours (depending on the reading lamp settings). It keeps you away from the daily burden with non-dimming light. Our book reading light does not produce flickering or dazzling light, preventing you from eye fatigue, it is a perfect reading light for reading in bed at night. In addition, the night reading lights are ergonomically shaped, hanging on your neck; the arms are flexible and adjustable, making it easy to adopt the most comfortable angle - an ideal lighting aid for hands-free activities. This reading light has a narrow beam angle (90), which is low enough not to disturb people nearby. At the same time, the neck light can illuminate the specific area you want to illuminate and provide abundant light without producing light disturbance for your partner. A perfect reading light for readers in bed.