AGPTEK A3 Drawing Pad, 118.5" Adjustable Brightness Tattoo Tracing Pad, LED Art Graphics Table Light Box for Aniamtion, Sketching, Designing, Stencilling, DrawingSewing Adjustable Brightness. Touch switch design to adjustable the brightness by pressing it for 1-3 seconds. Eyesight Protected Design. The bright flicker free led lamps provide even light for the light box surface. Large Working Area: A3 Size (16.7"*12.7"*0.2") which is large for people to draw. The drawing light pad is widely used in animation, tattoo USB Cable Powered Design. With USB cable, it can access to any USB port like computer, USB adapter or even power bank. Can Used for: Stenciling, animation, calligraphy, embossing, scrapbooking, tattoo transferring, sketching & drawing, sewing projects, stained glass, quilting etc. <span class="a-text-bold">AGPtEK light box is a new version of traditional drawing pad</span> which  goes with a USB cable. It allows people to plug it into computer, wall  charger or power bank. In addition, the USB cable is 2 meters long. The brightness of the art light pad is adjustable by pressing the touch  switch for 1-3 seconds when it connected to power. It is easy to use. AGPtEK tracing light box is super thin and you can take it anywhere, in  the classroom, office or coffee house to relax yourself by drawing  something. The light box is super bright. With the latest led technology, the led lamps inside the A3 light box  provide even light for users and it will not hurt eyes easily.