[3 Colors & 6 Adjustable Brightness] Unlike other bedside reading lamps, the neck light has 3 useful color temperatures: yellow (3000K), warm white (4000K) and cool white (6000K). 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. [Rechargeable & Long Lifespan] Compared with other Micro-USB book lights, our USB-C rechargeable LED reading light 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 daily charging with non-dimming light. [Eye Care & Ergonomic Design]Our book 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. [Compatible with Partners] 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 emit abundant light without producing light disturbance for your partner. A perfect reading light for readers in bed. [Product Warranty] 1. Original patent applied. 2. FCC, PSE approved. 3. 36-month worry-free warranty and friendly customer service. 4. Product box contains: 1* LED reading light 1* USB Type-C cable (24") 1* User manual 1* Bookmark 5. NOTE: Use the included Type-C cable, your original cable or a certified third-party cable; AC adapter not included.