[Durable Rechargeable] USB Type-C rechargeable which is reversible and therefore easier to plug in compared to Micro-USB. Up to 80 hours (general playback, single head) of powerful and non-diminishing brightness thanks to the included 1000mAh rechargeable battery. [3 Colors 6 Adjustable Brightness] 3 useful color temperature modes: yellow (3000K), warm white (4000K) and cool white (6000K). Each head has an independent switch for 3 levels of adjustable brightness. You can choose a comfortable setting as you like for reading, knitting, camping, or repairing, etc. [Ergonomic Eye Protection Design] No flickering and blue light filter with advanced LED beads. No more eye fatigue for children and adults. The arms are flexible and adjustable so you can get the most comfortable angle for you. Ergonomic design around the neck, and hands are totally free. [Partner Friendly] Special narrow beam angel design (90°). It is bright enough for the area you have positioned and at the same time dim