Check the listing for details. A4 Ultra-Thin LED Tracing Light Box Dimmable Brightness, Portable Drawing Pad. Color: Black, Condition: New. Listed at 12.99 USD. The A4 Ultra-Thin LED Tracing Light Box is a portable and versatile drawing pad that is perfect for artists and designers. It features a dimmable brightness level and is powered by a USB source. The light box is made of high-quality acrylic material and is designed to be used for various activities such as stenciling, 2D animation, and calligraphy. The A4P model, manufactured by tiktecklab, has a sleek black color and measures 14.17 inches in length, 9.45 inches in width, and 0.19 inches in height. It weighs 1.45 pounds and comes with a 2-meter cable length. The light box requires one CR2430 battery to operate. With its efficient light source, the A4 Ultra-Thin LED Tracing Light Box is perfect for creating detailed designs and drawings.