Specifications: colorTwilight black Applicable:Reading at night, outdoor night running, knitting, camping, repairing Shell material: ABS+ aluminum substrate Product introduction: [3 colors and brightness adjustable] 3 useful color temperature modes: yellow (3000K), warm white (4000K) and cool white (6000K). Each head has an independent switch, which can adjust 3 kinds of brightness. You can choose a comfortable environment according to your preferences for reading, knitting, camping or repair work. [Rechargeable and long-lasting storage] USB Type-C is rechargeable and reversible compared to other Micro-USBs, so it is easier to plug in. The included high-quality 2000mAh rechargeable battery (normal reading, single head) is powerful and will not reduce the brightness. [Eye protection and ergonomic design] Flicker-free and blue light filter design with advanced LED lamp beads. Whether it is a child or an adult, the eyes are no longer tired. The arms are soft and adjustable, so you can get the most comfortable angle. Ergonomic neck design, completely hands-free! [Applicable to partners] Special narrow beam angle (90) design. It is bright enough for the area you are targeting and dark enough to not disturb your sleeping partner. Packing includes: 1 * Centralized LED neck light 1 * USB Type-C cable