Smonet B2 Ultra-Thin Dimmable Brightness 60,000 Hours Life LED Light Pad for Tracing Board with Power Adaptor, Eyesight Protected Technology, 18 Months of Warranty 1. Ultra Thin(0.3Inch) and Light Weight(4lbs): Easy to Travel; Work Surface: 21.2 by 13.2 Inches. 2. Durable: LED Adjustable Light 60,000 Hours Life Span, Tracing Light Box Produces Little Heat When Using. And It is Suitable with Long Hours Working. 3. Widely Used: in Negative Film Viewing, Artwork Tracing, Calligraphy, Scrap Booking, Tattoo Transferring, Sewing Projects, X-ray Film Viewing and More 4. Adjustable Brightness: B2 Drawing Light Pad Comes with Touch Switch to Control Brightness by Pressing, Super Bright Flicker-free LED Light Allows You to See Through Very Thick Paper, Provides Better Visual Experience When Tracing Out Portraits and Correcting Line Work. 5. Easy Carrying: Super Thin, Super Convenient, Masterpiece Design.