Review on Dimmable Ultra Thin Architecture Calligraphy Artograph by Robert Xayamonty

Light weight. Good size for plain paper. It doesn't stay on. I press the power button, it lights up for a good 15-20 seconds, then it goes off. I tried different power sources and thought it might be because it comes with a micro USB cable but no power bank or anything. It doesn't work when a power bank is plugged into the wall, a cable is plugged into my computer, or my phone's battery is plugged in. Does anyone know how to leave it on long enough to render the entire page? Very disappointed. Update: My son discovered that the USB cable that came with the kit was defective. After replacing the cables, the block works fine. There are 3 lighting options. And it stays on now. I originally gave 1 star due to my problem. Now I'm giving it 4 stars because it really works and does everything it's supposed to. Didn't get 5 stars because the cable broke.