Light Box Drawing A4,Tracing Light Box,LED Copy Board for Artistic Tracing,X-ray Observation, Dimond Paintting3 Brightness Adjust: 3 levels of adjustable brightness can be controlled by touching the switch until the tracing board reaches your desired brightness. Protect EyesBright but not dazzling suitable for 24 hours lighting no flicker and no radiation safe for children Students Ultra thin Drawing TableIt weights only 0. 8 KG (only 7 mm) ultra thin and lightweight design is easy to carry You can put it in the backpack very easily The package is exquisite