An energy efficient a3 led lightbox with dimmer feature ideal for tracing designs and patterns for stencilling embossing scrap booking quilting as well as sewing embroidery calligraphy lettering and displaying slides transparencies dimmable led lighting consistent light across the whole panel fac tracing area that comfortably takes a3 size 2m usb cable for use through computerlaptiop mains ukeu plug with usb slot energy efficient low heat emission