[3 Colors 6 Adjustable Brightness] Unlike other lamps for reading in bed, neck lamp 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 depending on your needs. For example, a yellow light for general reading; a warm white one for studying; a cool white for precision sewing or crocheting. [Rechargeable and long life] Compared to 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 either side. In addition, the built-in 1000mAh battery provides a battery life of 80 hours (depending on the settings of the reading lamp). It takes you away from daily burden with non-diminishing light. [Eye Care Ergonomic Design] Our book reading light does not produce flickering or dazzling light, saving you from eye fatigue, it is a reading light for perfect night reading in bed. In addition, the reading lamps for the night have an ergonomic shape, hanging around your neck; the arms are flexible and adjustable making it easy to adopt the most comfortable angle - a ideal lighting aid for hands-free activities.[Partner Compatible] This reading light has a narrow beam angle (90), which is low enough not to disturb nearby people. At the same time, neck lamp can illuminate the specific area you want to illuminate and emit abundant light without producing light disturbance for your partner. A perfect reading lamp for readers in bed.