Check the listing for details. HSK A2 LED Artist tracing Light Box Copy Table, Adjustable High Brightness Light. Condition: New. Listed at 96.89 USD. Lock Button Avoid to Touch the button in Careless when Drawing or Diamond painting, Press dimmer up and dimmer down at the same time, hold for 3 seconds, light pad flash one time, it shows lock/unlock modes A2 Light Pad Super Thin, Aluminum Frame is Sturdy, Light Guide Board make The illumination is perfectly even, super bright 6000 Lux, and flicker-free, Overall dimension Size including Black Frame: 25.39”x 18.54”, Visual area Size: 23.8” x 16.9” Touch Button to Adjust Brightness and ON/OFF, Dimmer Up and Down Button to Control the Brightness Simple than One Button Package Included -- Light Box,Power Supplier Wide Application -- 2D Animation, Calligraphy, Diamond Painting,Tattoo Transferring, Sketching & Drawing, Sewing projects, Quilting, X-ray viewing