Nits (also called cd/m²) measure how bright a display appears. Outdoor LED displays need much higher brightness than indoor screens because sunlight falling on the screen reduces contrast.

Recommended outdoor brightness by location

There is no single number for every outdoor screen. A practical starting point used in most 2026 project discussions is:

  • Shaded building front or covered walkway: 4,000–5,000 nits.
  • North-facing billboard or street level with limited direct sun: 5,000–6,500 nits.
  • Direct-sun billboard, highway or stadium: 6,500–10,000 nits.

A 10,000-nit screen is not automatically better than a 6,000-nit screen. If the location rarely receives direct sunlight, extreme brightness increases power consumption, heat and electricity cost.

Brightness alone does not create a clear image

Visibility depends on brightness together with pixel pitch, viewing distance, contrast and content. A large-pitch screen with 10,000 nits can still look rough up close, while a fine-pitch 5,000-nit screen can look excellent at its designed distance.

Ask the supplier for:

  • Automatic brightness control (daylight sensor or schedule).
  • Uniformity between modules after calibration.
  • The actual power consumption at the brightness your project needs.

Power consumption is a real operating cost

Outdoor billboards run many hours per day. Two similar-looking screens can have very different energy use because of LED chip quality, driver design and cabinet efficiency. When comparing quotations, ask for watts per square metre at typical daytime brightness. Over several years, the electricity bill can exceed part of the initial price difference.

Heat and cooling

High brightness creates heat. Quality outdoor cabinets use efficient power supplies, proper airflow and temperature protection. A screen that is forced to run near maximum brightness in a hot climate may age faster unless the cabinet is designed for it.

What to put in your specification

  1. Location and sun exposure.
  2. Viewing distance and pixel pitch.
  3. Required nits and auto-brightness.
  4. Max power consumption per square metre.
  5. IP rating and operating temperature range.

The best specification is the one that gives clear images at the location with the lowest reasonable power use—not simply the highest number a brochure can offer.