[3 Colors & 9 Adjustable Brightness] Unlike other bedside reading lights, neck lights have 3 useful color temperatures: yellow (3000k), warm white (4000k) and cool white (6000k). It has 3 brightness levels per arm and offers different combinations of light reading settings according to your needs. For example, a yellow lamp for general reading; A warm white apprenticeship; Cool white for precision sewing or crocheting. [Recharge & Long Life] Our USB - C rechargeable LED reading light is user-friendly and safe for the elderly and young compared to other LED reading lights. other mini USB book lamps. That's because USB-C is a "one size fits all" design that's easy to insert from either side. Additionally, the built-in 1000mah battery provides 80 hours of battery life (depending on the light reader setting). It keeps you away from the daily burden, because its light does not dim. [Eye Care and Ergonomic Design] Our reading lamp does not produce flickering or dazzling light and avoid straining your eyes. It is a perfect bed reading lamp. Additionally, night reading lights are ergonomically shaped and hang around your neck; The arms are flexible and adjustable for the most comfortable angles - ideal for hand-free lighting. [suitable for reading] the beam angle of this reading lamp is narrow (90) and small enough not to disturb people nearby. At the same time, the neck lamp illuminates the specific area you want to illuminate and emits enough light without interfering with your partner's light. A perfect reading light for the reader in bed. [PACKAGE contains] Reading Light*1, USB DATA CABLE*1, instruction*1