HPS stands for High-Pressure Sodium, which is a type of lighting commonly used in various applications. High-Pressure Sodium lamps are a form of discharge lamp that produce light through the radiation emitted by excited atoms of sodium within a high-pressure gas.
These lamps are characterized by their yellow/orange light output, which is a result of the specific spectral distribution of sodium. HPS lights are widely used in outdoor lighting, such as streetlights and parking lot lighting, due to their high energy efficiency and long lifespan. They are favored for their ability to produce a significant amount of light output while consuming relatively low amounts of energy.
The HPS lighting technology operates on the principle of creating an electrical discharge between two electrodes within a sealed glass envelope, filled with a mixture of noble gases and sodium vapor. When electrical current passes through the electrodes, it ionizes the gas, causing the sodium atoms to become excited. As these excited atoms return to their ground state, they emit photons, producing the light output.
HPS lights also possess good color rendering properties, making them suitable for some applications where accurate color perception is necessary, such as in public spaces or sports stadiums. However, the yellow/orange light produced by HPS can cause a distortion in color appearance and limit visibility in certain situations.
Overall, HPS is a type of lighting technology that utilizes high-pressure sodium to provide efficient and long-lasting lighting solutions for various outdoor applications.
