Welcome to the store! 1. 3 Color Temperature Modes: This clip-on book light is designed with 3 color temperature modes and 9 dimming levels, allowing you to adjust to your needs. 2. Adjustable Clip: This clip-on reading lamp features an adjustable clip that can be fixed to music sheets, books, magazines, newspapers, and other items. 3. USB Charging: This clip-on book lamp with a 140mAh battery supports USB charging and can be connected to a power bank, laptop, and charging adapter, etc. 4. Rotating Design: This book reading lamp has a rotating design, allowing you to adjust the lamp body and lamp head to find a comfortable lighting angle. 5. Wide Application: This clip-on book reading lamp is small, lightweight, and portable, suitable for family, bedroom, office, dorm, travel, and camping, etc. Item Type: Clip-on Reading Lamp Material: Plastic Battery: 140mAh CR2025 button battery (built-in battery included) Weight: Approx. 43g / 1.5oz 1 x Clip-on Reading Lamp (built-in battery included) 1 x User Manual Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will give you the best solution!