Using this SLSF Frisco #1630 number plate sign is easy. First, connect the 3' USB - A to USB - C cable to the USB - C plug on the underside of the sign. Then, plug the USB - A end into a USB - A power supply. Once it's powered, the sign will light up and look great on your wall. When mounting, use the pre - cut area on the back for wall hardware. For maintenance, keep the sign clean by gently wiping it with a soft, dry cloth. Avoid getting it wet or using harsh chemicals. If you have any issues, refer to the photos provided with the product.