A4 Lightbox is ideal for quilting, sewing, tracing, embossing, scrapbooking, sketching, stencilling, calligraphy, embroidery, sewing and many more applications.It is a lightweight ultra slim LED lightbox that is fully dimmable via its continuous dimmer, using its LED technology and daylight technology.The lightbox provides an even spread of light from edge to edge, emits very little heat and features a handy ruler on the edges, with measurements in both centimeters and inches.This product is supplied with a USB cable, enabling the user to plug it into a USB plug, powerpack, laptop or tablet anywhere.