Can the LED display be seen clearly in direct sunlight?
Sunlight, broadly defined, is electromagnetic radiation from all spectrums of the sun. On Earth, sunlight is evident when the sun is above the horizon, and the solar radiation that is filtered by the Earth's atmosphere and hits the Earth's surface is called daylight.
When solar radiation is not obscured by clouds, it is often referred to as sunlight and is a combination of bright light and radiant heat when it hits directly. The World Meteorological Organization defines "sunshine time" as the direct sunlight irradiance received by an area above 120 watts per square meter.
The time of sun exposure can be recorded using a sun camera, all-sky radiometer or pyranometer. It takes 8.3 minutes for sunlight to travel from the sun to Earth.
The brightness efficacy of direct sunlight is approximately 93 lumens per watt of radiant flux, including infrared, visible and ultraviolet. Bright sunlight provides approximately 100,000 lumens or 100,000 lux per square meter on the Earth's surface.
So,When the brightness of our DIP led display products reaches about 7000CD, there is no problem at all. Can be used directly in direct sunlight.