What advantage do high-pressure sodium and metal halide lamps have in their light output?

High-pressure sodium and metal halide lamps are known for their high light output, which is a significant advantage in various applications such as street lighting, industrial facilities, and other outdoor and indoor settings. These lamps produce more lumens per watt compared to many other types of lighting, resulting in a greater amount of visible light for the same energy consumption. This capability not only enhances visibility in illuminated areas but also contributes to energy efficiency, as less power is needed to achieve higher light levels.

The increased efficacy of these lamps is attributed to their construction and the type of gas used within the bulbs, which helps maximize their light output. Such efficient light output is crucial for both safety and operational efficiency in various environments, making them a preferred choice for lighting solutions.