Litup A3 Light Box L18.86&times;W14.21 Inch Light Pad Light Table Drawing Light Board for Artcraft Tracing Animation Stencil-LP3-USB(A3-USB) Large Working Area: 18.86-by-14.21 inch. A3 light box is large enough for animation, tattoo transferring, sketching, calligraphy, embossing, Magna Tiles and more. Thin and Portable: 0.31 inch in thickness and 1.65 KG in weight which make it easy to carry around. Adjustable Brightness: Touch switch design to adjust the brightness by pressing it for 1-3 seconds. The maximum brightness reaches to 705CD/ Eyesight Protected Design: The flicker free led lamps provide even light for the light box surface, no sore eyes when using. Long Life Span and 18 Months Warranty: High quality led lamp support 50,000 hours of continuous use. We offer 18 months warranty for LP3-USB.