[3 Color & 6 Brightness Adjustable] This Glocusent book light owns 3 useful color temperature modes: yellow(3000K), warm white(4000K) and cool white(6000K). Each neck light head owns an independent switch for 3 brightness levels dimmable. The perfect reading light for crocheting and book reading light for bed, knitting, camping, or repairing etc. [Rechargeable & Long-Lasting] This neck reading light rechargeable with USB Type-C which is reversible and therefore easier to plug in compared with other reading lamp for crafts charged with Micro-USB. Up to 80 hours (general reading, single head) of powerful, non-diminishing brightness from the included premium rechargeable 1000mAh battery. A long lasting usb rechargeable reading lights for books in bed. [Eye Caring & Ergonomic Design] Blue light filter and no flickering design by the advanced LED beads of the Glocusent reading light. Compared with other reading lights for books in bed, you feel no more eye strain with the Glocusent book light. The arms of the reading light around your neck are supple and adjustable so you can get the angle most comfortable for you. This around the neck reading light is ergonomically designed, it is an exceptional hands free neck lamp for reading! [Partner Friendly] Unlike other book lights for reading at night in bed, the Glocusent neck book light has a special narrow beam angle(90) design. It is bright enough to the area you positioned and at the same time dim enough to not disturb your sound asleep partner. A perfect book reading light for bed with no disturbance at all.