[3 Color 3Brightness Adjustable] Unlike other reading lights for books in bed, our neck light has 3 useful colour temperatures: yellow warm whiteand cool white. Also, it comes with 3 brightness levels for each arm, you can use various light setting combinations based on your needs. For instance, yellow light for general reading; warm white light for studying; cool white light for precise stitching or crocheting. [Rechargeable Long-Lasting] Comparing with other Micro-USB book lights, our USB-C rechargeable LED reading light is user-friendly and safer for seniors and youth. It is because the USB-C is a one-size-fits-all design, which allows you to plug it into any side you want. In addition, the built-in 1000mAh battery provides up to 60-80 hrs working time (depending on your light settings). It keeps you away from everyday charging with non-diminishing light. [Eye Caring Ergonomic Design] There is no flickering or dazzling light in our book reading light, allowing you to stay away from eye strain eye fatigue, which makes a perfect night reading light. Plus, the book lights for reading at night come with an ergonomic shape, hanging on your neck; the arms are supple and adjustable so that you can adjust to the most comfortable angle ideal lighting aid for hands-free activities. [Partner Friendly] This book light has a special narrow beam angle (90) design, which is dim enough not to disturb people nearby. Meanwhile, it can light up the specific area you want to illuminate and emit abundant light without producing lighting disturbance to your partner. Perfect bed reading light for bedtime readers. Delivery Quantity:1 Package Contents: Only the above package contents, excluding other products. Size:10x7.4x1.1inch (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: black (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)