Outdoor LED displays have brightness as a crucial indicator, as it directly affects the display effect, energy consumption, and viewing comfort. Inappropriate brightness settings not only make the displayed content blurry but may also cause light pollution and even harm to visual health. Let's comprehensively introduce how to make a scientific brightness selection in different application scenarios.

1.The brightness of LED displays is usually measured in candelas per square meter (cd/m²), sometimes referred to as "nits". This metric represents the intensity of light per unit area, and a higher value indicates a stronger light output from the display.

2.The outdoor environment experiences significant variations in light levels, ranging from a few lux at night to tens of thousands of lux under the midday sun. Therefore, outdoor LED displays require a higher base level of brightness: 

Display screens facing south: Considering the impact of direct sunlight, the brightness needs to reach 5500cd/m² to display content normally.

Display screens facing north: To avoid direct sunlight, the brightness can be appropriately reduced, around 5000cd/m² is sufficient.

Provide excellent display quality.

3.Brightness adjustments for different outdoor scenarios. For example, urban commercial areas

The brightness is set at 5000-6000 cd/m². This ensures visibility during the day while also controlling night-time light pollution.

Transport hubs

The brightness is set at 6000-7000 cd/m² to ensure clear information display under various weather conditions.

Community surroundings

The brightness should be controlled at 4000-5000 cd/m² and an automatic dimming system should be equipped to minimize impact on residents.