[3 Colors & 6 Adjustable Brightness] Unlike other bedside reading lights, Glocusent bedside lamp has 3 usable color temperatures: yellow (3000K), warm white (4000K) and cool white (6000K). It has 3 brightness levels per arm and different combinations of reading light settings to suit your needs. For example, a yellow light for general reading; a warm white for studying; a cool white for precision sewing or crocheting. [Rechargeable & Long Life] Compared with other Micro-USB book lights, our USB-C rechargeable LED reading light is user-friendly and safer for the elderly and young. That's because USB-C is a \"one size fits all\" design, easy to connect to any side. In addition, the built-in 1000mAh battery provides up to 80 hours of battery life (depending on eReader lamp settings). It keeps you away from the daily burden of undiminished light. [Eye Care & Ergonomic Design] Our book reading lamp does not produce flickering or dazzling light, saving you from eye strain, it is a perfect night reading lamp for bedside reading. Ergonomically shaped, clings to your neck; The arms are soft and adjustable, making it easy to adopt the most comfortable angle - an ideal lighting aid for hands-free activities. < p>[Compatible with Partners] This reading lamp has a narrow beam angle (90), which is low enough not to disturb people nearby. At the same time, the neck lamp can illuminate the specific area you want to illuminate and emit abundant light without producing light interference for your partner. A perfect reading light for in-bed readers. 1. FCC, CE, RoHS, PSE approved. 2. Product box includes: 1* LED neck reading light 1* USB Type-C cable (24\") 1* User manual 1* Bookmark 3. NOTE: Please use the included Type-C cable, your original cable or a certified third-party cable; AC adapter is not included.