3 Colors & 5 Brightness Levels: Combines 10 amber and 9 white LED beads, offering 3 color temperature modes: Mixed (3400K), White (6000K), and Amber (1800K), with 5 adjustable brightness levels. Features a built-in memory function to remember the last color temperature and brightness. USB C Rechargeable: Equipped with a 1000mAh high-capacity rechargeable battery for repeated use, saving money and being environmentally friendly. Charges quickly and provides up to tens of hours of stable lighting (varies depending on brightness). Powered by a Type-C port with a power indicator for easy power control. Soft Light Protects Your Eyes: Using professional eye-friendly LED beads, the Gritin reading lamp emits flicker-free, shadow-free, and glare-free light. The soft natural light does not strain your eyes even after prolonged use, and it does not disturb others' sleep. Omnidirectional Lighting: The 360° flexible metal gooseneck can be adjusted to any angle for targeted lighting. Its horizontal light design offers a wider lighting area. The non-slip clip securely attaches to e-readers, books, bookshelves, etc. Wide Application: Compact and flexibly designed, it is easy to carry and fits in your backpack without taking up much space. Perfect for night reading both at home and while traveling.