Review on Golspark Rechargeable Light Box for Tracing Board - Portable Cordless Light Pad A4 LED Trace Lights - Wireless Battery Operated Copy Board Dimmable Black Diamond Painting Sketch - Perfect Gift for Kids by William Fowler

I like this lightbox, I tried to add a photo of three light variations but it's hard to see. I've shown the light through a sheet of watercolor paper and drawing paper, and through two sheets of drawing paper, and you can LIGHTLY see through your sketch or repeat a bit. It needs to be connected with the included USB cable, but you'll need a wall plug if you want to plug it into the wall rather than, say, a portable charger or computer. It wasn't a problem for me as I already had it and just left it plugged in on my desk. It is very easy to use, lightweight yet durable and I am very happy with my purchase. It's great, especially for the price!