HPS Street Lights Suppliers

Technical progress and market application of high-pressure sodium street lamps
HPS street lights are a light source that emits light based on the principle of gas discharge. With its efficient light output, long service life and low energy consumption, it is widely used in road lighting, industrial lighting, street lighting and other large public places. The basic working principle and structural characteristics of high-pressure sodium lamps make them very suitable for specific applications. Although the evolution of modern lighting technology has promoted more energy-saving and environmentally friendly technologies such as LED to gradually become mainstream, high-pressure sodium lamps still occupy an important position in many fields.

The working principle of high-pressure sodium lamps is mainly to excite sodium vapor through voltage and generate discharge through the action of current. The light emitted during the discharge is protected by the glass lampshade and finally radiates to the surrounding environment with a specific spectrum. Its basic structure includes electrodes and power supply, sodium vapor, lamp housing, and gas pressure of the lamp. When the electrodes in the high-pressure sodium lamp are energized, a high-temperature current is generated. This current passes through the sodium vapor in the lamp tube, causing the gas molecules to be excited under high temperature and high pressure, and then emit light. Sodium vapor is very easy to be excited at high temperature and can release a specific yellow spectrum. Because the atomic structure of sodium interacts with the external electric field to generate a unique yellow light, the spectrum generated by sodium vapor is concentrated in the yellow-orange band. The outer lamp housing is generally made of ceramic or glass materials, which can withstand high temperatures and provide sufficient heat dissipation to ensure that the lamp tube does not overheat during operation. Unlike low-pressure sodium lamps, high-pressure sodium lamps use higher gas pressures, and the light source produced is brighter and more concentrated. Increased gas pressure means higher efficiency and stronger light output.

High-pressure sodium lamps have high lumen output and can provide bright and clear lighting effects, especially suitable for road lighting and highways. Compared with traditional incandescent and halogen lamps, high pressure sodium lamps can provide higher lighting effects and have significantly improved energy efficiency, reducing power consumption. The light emitted by high pressure sodium lamps is yellow, which can provide stronger contrast, especially in night lighting environments, reducing glare and enhancing the visual perception of drivers and pedestrians. High pressure sodium lamps can work stably in various environmental conditions, whether in urban roads or rural areas, or in places where high brightness is required, such as industrial areas and highways.

A notable feature of high pressure sodium lamps is high light efficiency. At the same power, the light output of high pressure sodium lamps is much stronger than most traditional light sources. Generally, the light efficiency of high pressure sodium lamps can reach 100-150 lumens per watt, which is even higher than some LED lamps. This makes high pressure sodium lamps a very suitable light source for large-scale lighting applications. High pressure sodium lamps have a relatively long service life, usually up to 24,000 to 30,000 hours. Compared with traditional incandescent or fluorescent lamps, the longer service life of high pressure sodium lamps means less frequent replacement and lower maintenance costs. It is particularly suitable for areas that require long-term, high-intensity lighting, such as highways and industrial areas. The initial investment cost of high-pressure sodium lamps is relatively low compared to LED lighting. Although high-pressure sodium lamps are slightly inferior to LEDs in terms of energy efficiency, they are still a cost-effective choice for places with limited budgets and large-scale lighting.

The yellow light emitted by high-pressure sodium lamps not only has good penetration, but also provides clearer visual effects in harsh climates and conditions. Yellow light can reduce the halo phenomenon in rainy and foggy weather, improve lighting clarity, and is less affected by air humidity than other types of lamps. The lamp body of high-pressure sodium lamps is usually made of durable materials such as aluminum alloy and steel, and has strong earthquake resistance, wind resistance and weather resistance. Even in harsh weather conditions, high-pressure sodium lamps can continue to provide reliable lighting and are suitable for outdoor environments.

Market applications of high-pressure sodium lamp street lamps of DDK Tech Elecfacility Yangzhou Co., Ltd.
Compared with other types of road lighting equipment, such as metal halide lamps and LED street lights, high-pressure sodium lamps have lower initial investment costs and can provide more stable performance in long-term use. High-pressure sodium lamps have lower maintenance costs, longer life, and due to their simple structure, less maintenance requirements. This makes it an ideal choice for many urban and industrial areas, especially those where frequent maintenance is difficult. With good adaptability, whether in densely populated urban areas or in rural areas far away from the power grid, high-pressure sodium lamps can provide strong and stable lighting effects and can cope with various harsh weather conditions.

High-pressure sodium lamps still face some market challenges. The light emitted by high-pressure sodium lamps is yellow, which may affect the visual perception at night in some occasions, especially in some environments with high requirements for color reproduction. Although the energy efficiency of high-pressure sodium lamps has exceeded that of traditional lighting, there is still a large energy consumption gap compared with the emerging LED street lamps. LED lighting has gradually become the mainstream to replace traditional light sources. DDK's high-pressure sodium lamp street lamp products provide efficient light source output and can provide high-brightness lighting at lower power. The light efficiency of these street lamps is usually between 100-150 lumens per watt, which can effectively reduce energy consumption while providing efficient lighting. Compared with traditional lighting solutions, DDK's high-pressure sodium lamps have a longer service life, usually up to 24,000 to 30,000 hours, reducing the frequency of replacement and reducing maintenance costs. DDK's high-pressure sodium lamp street lamps use high-quality aluminum alloys and corrosion-resistant materials, combined with sophisticated manufacturing processes to ensure that the products have excellent oxidation resistance and corrosion resistance. Especially in complex environments, the street lamps can operate stably. PF107 series high-pressure sodium lamps can still provide reliable lighting effects under extreme conditions such as high temperature, high humidity or acidic environment. In addition, DDK's street lamps adopt a maintenance-friendly design, which provides convenience for daily maintenance and overhaul, and further reduces operation and maintenance costs. DDK has carefully optimized the optical design of its high-pressure sodium lamp products. In addition, the low-glare design ensures the quality of road lighting, reduces visual interference to drivers and pedestrians, and improves the safety of nighttime road traffic.

DDK's high-pressure sodium lamp street lamps fully consider the product's wind resistance, shock resistance and weather resistance in material selection and design. Lamp body materials such as aluminum alloy and die-cast aluminum alloy have strong corrosion resistance and can withstand harsh weather conditions such as high temperature, humidity, acid mist, strong wind, etc. Even under high-load working conditions, these high-pressure sodium lamp street lamps can still work stably for a long time, and are suitable for wide use in cities, industrial areas and road lighting in harsh environments.

High-pressure sodium lamps are used in road lighting, industrial lighting, public place lighting and other fields. High-pressure sodium lamps can effectively reduce light pollution and improve road contrast due to their warm yellow light, making them very suitable for street lighting. The high-pressure sodium lamps provided by DDK can meet different needs from urban main roads to secondary streets, and are widely used in places such as highways and rural roads. High-pressure sodium lamps are widely used in industrial areas, especially in large places such as warehouses, production workshops and parking lots. The high brightness and strong beams they provide can ensure the lighting needs of large areas. At the same time, their high efficiency can also reduce power consumption and improve the energy efficiency of enterprises. High-pressure sodium lamps are also suitable for lighting in parks, squares and other public areas. The PF107 series of high-pressure sodium lamps provided by DDK can avoid excessive light pollution while ensuring the quality of lighting, providing residents with a warm and pleasant night environment.

Although LED technology has great advantages in energy saving and lighting effects, high-pressure sodium lamps still have an irreplaceable position in some specific applications. First, the initial investment of high-pressure sodium lamps is relatively low and the installation is easy, which is very suitable for places that require large-scale lighting but have limited budgets. Secondly, although LED street lamps have higher energy efficiency, they are not as adaptable as high-pressure sodium lamps in high temperature or humidity environments.