How to Choose Pixel Pitch for an Outdoor LED Billboard

Pitch selection for outdoor LED advertising walls: viewing distance rules, P3–P8 trade-offs and the information a supplier needs to quote.

Start with the closest viewer

Pixel pitch is the distance between LED clusters in millimetres. A P4 wall viewed from 4 metres looks continuous; the same wall viewed from 40 metres wastes resolution. For outdoor advertising, the closest regular viewing distance in metres is a workable first estimate of the pitch in millimetres: a roadside face read from 30 m+ rarely needs finer than P6–P8, while a pedestrian-level face at 5–10 m justifies P3–P4.

Brightness is the second decision

Outdoor faces compete with daylight. The LETEMON outdoor family is documented at 4000–5500 cd/m² by model; south- and west-facing sites and high-ambient regions should be specified at the upper part of the range, and the RFQ should state the site orientation so the recommendation can account for it.

What to send for an accurate recommendation

Site city, face width and height, mounting height, closest and typical viewing distances, and a photo of the structure. With those five items, the reply can fix the pitch, cabinet count and power estimate instead of exchanging generic lists.