VIVINATURE A3 Ultrl-thin Artcraft Tracing Light Box Pad Dimmable Brightness LED Drawing Pad with DC 12V Power Adapter &hellip; Adjustable brightness to protect eyesight.Press the switch for a few seconds, the copy board will adjust the brightness automatic till the brightness reaches the maximum.Move your finger from switch when the brightness is suitable for you, then the brightness will be memorized automaticly. Provide ideal working lighting environment for penmanship and design. Provide the most comfortable lightning environment for animators, designers, art enthusiasts. It will be a great Christmas gift for anyone you love Tough Sensor Switch and Red Light Indicator: Light on Side will Turn Red in Energy Supply With large area working surface, lightweight and ultra slim designed for easy portability. Border has measurements so you can quickly scale your work. Package: Artcraft Tracing Light Pad, DC Adapter - 12V, Instruction Manual