Specifications Color: blue Size: 420 x 120mm Voltage: 36V Light color: white Light source type: 16 LED lamp beads Control method: touch control Attachment method: clip Package includes 1 x reading lamp 1 x USB charging cable LED reading lamp with eye-care light source. The clamp lamp provides natural, non-flickering light that helps reduce eye strain. Ideal for reading, studying, working, drawing, and other close-up tasks. Helps reduce eye fatigue and supports eye comfort. 3 brightness levels adjustable to suit your needs. Press the button once to change color temperature, and long press to adjust brightness. The flexible gooseneck can be rotated 360 degrees for optimal viewing angle. Non-slip silicone pad on the base allows stable placement on flat surfaces. Clip-on design with non-slip clamp. Maximum clamp opening: 6 cm. Can be attached to books, desks, headboards, shelves, bookcases, wardrobes, music stands, pianos, and computers. Can also be used as a tabletop lamp. Wide application: LED clip-on USB reading light delivers uniform, wide, and evenly distributed illumination. Suitable for student dormitories, offices, bedrooms, children's rooms, and reading with e-readers such as Kindle.