Powered by USB port, desktop or laptop, easy to use. It adopts flicker-free and radiation-free LED light source design to protect eyes. 10 levels of brightness adjustable, 3 kinds of light colors changeable, free to meet your different needs in various occasions. 3-layer foldable design and rotatable lamp corners to meet various lighting needs. When the light is on, press and hold the switch to set the 1 minute auto-off timer, and the blue light of the indicator will flash. The 2.4 inch clip width allows efficient use, and the retractable tube allows you to expand the lighting area and adjust the lighting position as needed. Perfect for those who need the right light for reading, studying or want to take it wherever they go. Excellent magnifying tool for printing, mechanics, engraving, gardening, collecting coins and stamps,and more. This flexible foldable desk lamp is designed for daily home and office use. Adopt high-brightness LED lights, 10-level three-color adjustable temperature, to meet your various needs. What is thatwhat are you waiting for Come buy it.