They are standard P4 panels, you can buy them for about $20-30 depending on seller/volume. They are 64x32 pixels. You can also buy P5, P10 and other sizes. T

They are standard P4 panels, you can buy them for about $20-30 depending on seller/volume. They are 64x32 pixels. You can also buy P5, P10 and other sizes. They number tells you how many millimeters between each physical pixel. I use P10s for my Christmas display, they look good from about 15feet away or more.