3 Colors & 6 Adjustable Brightness Levels The Glocusent neck lamp offers 3 color temperatures: warm yellow (3000K), warm white (4000K), and cool white (6000K). Each arm has 3 brightness settings, allowing customizable lighting combinations for various activities such as reading, studying, or detailed crafts like sewing and crocheting.Rechargeable & Long-Lasting Featuring a USB-C charging port for easy and universal connectivity, this LED book light is suitable for users of all ages. The built-in 1000mAh battery provides up to 80 hours of runtime depending on the brightness setting, delivering consistent, non-dimming light for extended use.Eye Care & Ergonomic Design The light emits flicker-free and glare-free illumination to help reduce eye strain, making it ideal for nighttime reading. Its ergonomic design rests comfortably around the neck, with flexible, adjustable arms that allow you to position the light at the most comfortable angle for hands-free use.Minimized Light Disturbance With a narrow 90-degree beam angle, this neck lamp focuses light precisely where needed without spilling into surrounding areas. It allows you to read in bed without disturbing a nearby partner, making it a considerate choice for shared spaces.Note: Measurements are manually taken; please allow for slight variations. Color may vary slightly due to lighting and screen settings. Actual product may differ slightly from images.