AGPtEK LED Artcraft Tracing Light Pad Light Box (A4 Size) - Ultra-thin USB Power Cable Dimmable Brightness Tatoo Pad for Aniamtion Sketching Designing Stencilling Power supply by USB cable , convenience to access to any USB port like computer Wall outlet ,USB adapter and power bank. Thin & Portable design. The thickness is only 6.2mm and the light box weights 625g which makes the it portable. Dimmable, 3-level adjustable brightness, change the Illumination according to your need. Touch sensor Switch Design , turn on/off and brightness control easily just by slight touch. Ideal for Stenciling, 2D Animation, Calligraphy, Embossing, Scrapbooking, Tattoo Transferring, Sketching & Drawing, Sewing projects, Stained Glass, Quilting etc.