36 LEDs with 25 light modes. The book reading light offers 5 color temperatures: white, warm white, and amber. Each color temperature has 5 brightness levels: 20%, 40%, 60%, 80%, and 100%. A total of 25 light modes to meet all your needs.Energy saving and eye protection: The USB-powered LED light consumes up to 75% less energy than standard incandescent bulbs, helping save money and reduce environmental impact. Flicker-free, glare-free, and UV-free lighting helps protect your eyes.Touch sensor and memory function: The reading light features a touch control design. A simple touch turns the light on/off and adjusts color temperature settings. The memory function automatically recalls the last used brightness level for convenience.Sturdy clip and flexible neck: The LED reading light includes a padded clip that attaches securely to furniture edges without causing damage. Suitable for use on desks, bookstands, computer tables, headboards, and drawing boards. The flexible 360-degree gooseneck allows adjustment to any desired angle.High-capacity battery and USB charging: Built-in 1800mAh lithium battery provides runtime of up to 30 hours on the lowest brightness setting. The USB port is compatible with any standard USB power source, including laptops, USB chargers, and power banks.