LitEnergy LE-A4S-B A4 LED Copy Board Light Tracing Box USBEASY CARRYING -- Light weight super slim light pad, thickness only 0.2’’, about 5mm. Overall dimension including black frame is L12.6’’xW9.0’’xH0.2’’. The visual working area is A4.,ADJUSTABLE BRIGHTNESS -- Simply keep pressing the touch switch for several seconds until you get the desired brightness you want. It’s gradual dimming effect.,EYESIGHT-PROTECTIVE DESIGN -- Light tracing box with energy efficient flicker-free LED lamps, provides a perfectly even illustrated surface.,USB POWERED -- tracer light board comes with 1pc USB power cable, it's not rechargeable, so it will work by plugged in any computer, power bank or USB adaptor easily.,Wide APPLICATION -- Ideal for stenciling, 2D animation, calligraphy, embrossing, scrapbooking, tattoo transferring, sketching & drawing, streaming, sewing projects, stained glass, quilting, diamond art supplies etc.Visit our store for more great deals!Thank you!