3 Levels Dimmable Brightness Adjustable LED Graphic Tablet Writing Painting Light Box Tracing Board Copy Pads Digital Drawing Tablet Artcraft A4 Copy Table LED Board This product is made of high light transmittance fine quality panel, only 1mm thick and free from impurities. It is no harm to eyes, ideal for stenciling, 2D animation, calligraphy, embossing, drawing, etc.  Features: USB interface design, can be connected power bank, computer or power plug to charge. Fine quality acrylic panel, high light transmittance. LED Light, double LED eye conservation light. Suitable for use on a desk or in lap, easily assembled and carried. Vision technology, flicker-free super-bright, environmentally friendly LED with reference grid. 3-Level Adjustable Brightness: 3 different brightness to meet your different needs, while the light is eye-protecting, no glare and uniform luminance,  no harm to your eyes, especially working in long hours. Specificstions: Item type: Drawing Board Material: Acrylic Selection style: Three kinds of types Light source: LED Voltage: USB 5V Package weight: 411g / 0.9pounds Package size: 326 * 262 * 30mm / 12.8 * 10.3 * 1.18inches Package list: 1 * Drawing Board 1 * USB cable