The light box is eyesight-protected, portable, durable and easy to use. The stepless brightness adjustable design increases the accuracy of your drawing. You can adjust the brightness by simply pressing to the button till you get the brightness(from Bright to Dark). Only 5mm in thickness and 730g in weight makes it highly portable. for Stenciling, 2D Animation, Calligraphy, Embossing, Scrapbooking, Transferring, Sketching, Drawing, Sewing projects, Stained Glass, Quilting, Appliqu, X-ray viewing, etc. Features - Color: As shown. - Material: Acrylic. - Size: 36 x 26 x 0.5cm(W x L x H). - Working voltage: DC5V - Power: 3W - EYESIGHT-PROTECTED DESIGN: With advanced eyesight-protected technology designed to release from eyestrain. More bright, more moderate. Flicker-Free, no glare, no shadow. - THREE-LEVEL ADJUSTTABLE BRIGHTNESS: Simplified process leads better results in working efficiency. - ULTRA THIN: 5mm in thickness and 730g in weight makes it easy to carry around. - EASY POWER SUPPLY: By connecting to the USB port of computers, USB adapters or even power banks. - MULTIPLE USE: for Stenciling, 2D Animation, Calligraphy, Embossing, Scrapbooking, Transferring, Sketching, Drawing, Sewing projects, Stained Glass, Quilting, Appliqu ,X-ray viewing, etc.