1. A4 Ultra Thin USB Led Light Pad set: A must do : please --peel off-- the protection film, turn on the light pad, and put a paper on to the light pad, you will see it works great. real factory direct sale, super price and high quality ensured. super-worth Upgraded A4 Ultra-thin Portable LED USB Power Cable Dimmable Brightness LED Artcraft Pad for Artists Drawing Sketching Animation Stencilling X-ray Viewing, Diamond Painting - It is super thin and the acrylic surface makes it feel like a glass panel - This Art-craft pad is a smooth pad, the light from the pad through the paper clearly illuminates the images, which makes images more clear and easy to see. - You can take it anywhere with you easily unlike a traditional light box - Dimmable, STEPLESS adjustable brightness, change the Illumination based on your need.