The Wafer Light Box is ultra-light and ultra-thin: only 0.8cm (3/8") thick. Its high quality, fully dimmable LEDs provide even light from edge to edge. The versatile, borderless, built-in ruler edges make the Wafer ideal for calligraphy, stenciling, scrap-booking, embossing, quilting, embroidery, sewing and much more. It is low heat for extended use and powered by AC adapter. Available in 2 sizes.