PORTABLE & ULTRA SLIM- The thickness is only 3mm which makes it portable. The illumination is perfectly even, super bright, and flicker-free EYESIGHT-PROTECTED TECHNOLOGY- 3-Level Brightness Adjustment Ease your eye strain together with the protective film and eye-protective LED lamp in different situation LIGHT PAD STAND & CLIPS- 4pcs clips can fasten canvas/paper/X-Ray or something firmly. And the three adjustable angles detachable metal frame, not only can hold and protect the pad perfectly, but also can provide you with the best viewing angle