LED Signs come in various "resolutions" which helps determine how well your graphics look on the sign. For instance, a 34mm pitch means that the distance between the center of each pixel is 34mm. These are actually very low res LED signs and are used predominantly for DOT highway informational signs where the viewing distance is typically 150 feet or more.
The most common resolution configurations for outdoor color LED signs is 16mm to 20mm. The 20mm signs offer great viewing resolution from 100 feet or more away. The 16mm signs are great for 75 feet or more away. If your customer will view your sign from 40 to 60 feet away you'll want to consider a 12mm or 14mm outdoor digital sign for optimal viewing results.
Ask your sign company or sales rep for a demo of different resolutions before making your decision. This is a big investment so it's important to match your expectations with what you think your potential customer will be seeing.
