Discharge lamps are primarily used in environments where powerful lighting is required – for example in industrial facilities, sports arenas, and outdoor lighting. With long lifespans and high light output, they are a suitable alternative to traditional incandescent lamps in situations where LEDs are not yet a fully viable option.
What is a discharge lamp?
A discharge lamp is a type of light source where light is produced by an electrical discharge between two electrodes inside a gas-filled enclosure. Common types include metal halide lamps, high-pressure sodium lamps, and mercury lamps. These are often used in large fixtures that illuminate roads, building façades, warehouses, and sports facilities.
Advantages of discharge lamps
Compared to traditional incandescent lamps, discharge lamps offer significantly higher luminous efficiency and longer lifespans. They can illuminate large areas with fewer light points and often provide better energy efficiency. This makes them a cost-effective choice for large-scale installations where high light output is essential.
Are there any drawbacks?
Yes, there are some limitations. Discharge lamps often require a warm-up period before reaching full brightness. They are not always dimmable, and many types contain mercury or other materials that require special handling during recycling. Therefore, it is important to select the right light source based on both functionality and environmental impact.
Frequently asked questions about discharge lamps
Are discharge lamps the same as fluorescent tubes?
No, they are not the same. A fluorescent tube is a type of low-pressure discharge lamp, but the term “discharge lamp” also covers other types with higher pressures and different gas mixtures – for example, metal halide and sodium lamps.
What is the most common type of discharge lamp?
High-pressure sodium lamps have long been the most commonly used discharge lamps for street lighting, thanks to their high luminous efficiency and long lifespan.
Do you want to know which type of discharge lamp is best suited for your operation? Our experts can help you find the right solution – feel free to contact us for advice.
