This USB magnifier desk lamp easily adjusts between 10 levels of brightness and 3 colour lights. It is perfect for drawing, reading, arts & crafts, sewing, needlework, beading, electronic repair, working, studying and other hobbies. With a 3x HD magnifier lens made of glass, this lamp brings hard to see details into clear, sharp focus. It can be clipped on any flat surface that the thickness is less than 2.56 inches/6.5cm (max) thick.