Specification: Material: Acrylic.  Type: A3/A4/A5.  Light strip: A3: Double Light strip, A4: Single Light strip, A5: Single Light strip.  Lamp beads: A3: 90pcs, A4: 28pcs, A5: 11pcs.  Working Voltage: 5V 1A.  Rated Power: A3: 18W, A4: 5.6W, A5: 2.2W.  Brightness: Stepless Dimmable.     Features: 1. Updated Version: The light tablet has stepless dimmable function Just a long press on the switch, you could adjust the brightness at your will. When you turn on the light pad again, it will show the brightness of your last use.  2. Portable and Light Weight Design: Light weight so it is easy to carry and no trouble in storage.  3. Eye Protected During Tracing: Take flicker-free super bright eco-friendly led, uniform and stable light would make you feel comfortable during tracing process. The light guide plate has filtered the harmful rays and protect your eyes, no harsh light, no problem for long time working.  4. USB Powered: Come with a USB cable, the tracing light box is easy to power on by plugging into a power bank, computer or any USB port on the wall socket.  5. Wide Application: The light pad is an ideal tool for Sketching, Drawing, 2D Animation, Calligraphy, Embossing, Scrapbooking, Tattoo Transferring, Quilting, no matter for professionals or amateurs. It is also a fabulous gift for artists, designers and photographers.     Package Included: 1 * LED Light Pad.  1 * USB Cable