LED clip lights are equipped with three color temperatures: warm light (3000K), warm white light (4500K), and white light (6500K). Each lighting mode has 10 brightness dimming levels. There are a total of 30 lighting modes to meet all your needs. According to the intended use, you will always receive the most suitable light color. [Eye Protection] The reading light is made of high-quality 24 LED chips, providing light without ghosting and flickering. Even if exposed to light for a long time, book lights will not make your eyes feel tired. Intended to help readers and staff protect their eyesight and reduce eye fatigue. A great gift for children and bookworms. The 360 flexible gooseneck and USB power supply (without adapter) allow you to easily adjust the lamp clamp and guide the light to the position you want. USB cables can easily connect to available USB ports (laptop/desktop/mobile power/USB adapter) to power the lights.