HUION L4S LED Light Box A4 Ultra-Thin USB PoweredAn ultra-thin LED light box for tracing, drawing, and artwork reproduction. The A4-size (12 by 8 inch) work surface illuminates evenly at 1100 Lux brightness. Powered via USB for flexible use with computers, power banks, or wall adapters. Touch-sensitive controls offer stepless brightness adjustment with memory function. Only 5.1mm thick and weighs 0.60kg for easy portability. Includes protective film and eye-safe LED lighting to reduce eye strain during extended poundsProductdimensions0.2 x 0.2 x 14.2 inches