What is the beam distance at 1 lux ?

The beam distance of a light source is a critical factor to consider when selecting a lighting solution for an application. It's essential to understand the factors that influence the beam distance to ensure that the light source meets the desired specifications and performs optimally.

The beam distance is defined as the range at which the light intensity is equivalent to the illumination provided by a full moon. This metric is often used as a reference point to assess the brightness and reach of a light source in real-world scenarios.

Several factors can influence the beam distance of a light source. The most significant one is the output power or lumen rating of the light. In general, higher lumen values result in a more extended beam distance since more light energy is emitted. Other aspects that affect beam distance include the lens design (such as focus or flood), reflector quality, and the presence of any additional optics like Fresnel lenses.

Another factor to consider is the wavelength of the light. Light sources with shorter wavelengths, such as blue or violet lights, tend to have a shorter beam distance compared to those with longer wavelengths, such as red lights. This is due to the diffraction and scattering effects that occur as light passes through the atmosphere.

When it comes to the beam distance at 1 lux, which represents the range at which the light intensity is equivalent to the illumination provided by a full moon, it can vary significantly depending on various factors like the light source's lumen output and beam angle. Higher lumen lights generally have a longer beam distance, but it's essential to consider the specific application requirements and select an appropriate light source accordingly.

In conclusion, the beam distance of a light source is an essential factor to consider when selecting a lighting solution for an application. It's critical to understand the factors that influence the beam distance, such as the output power, lens design, and the wavelength of the light, to ensure that the light source meets the desired specifications and performs optimally.