What is a high pressure sodium light bulb?

High-pressure sodium (HPS) lamps are part of the family of high intensity light bulbs that put out large amounts of light generally needed for street lighting and security lighting. … HPS bulbs actually produce a dark pink glow when first struck, and an intense pinkish orange light when warmed.

Can I replace a high pressure sodium bulb with LED?

While upgrading to LED provides a lot of benefits, high pressure sodium (HPS) lamps still provide some of the most efficient lighting available. … LEDs, however, are better able to control their light, which is why a lower-watt LED can replace a higher-watt high pressure sodium bulb.

What color light is high pressure sodium?

Low and High Pressure Sodium lights are well-known for their warm yellow glow (CCT values around 2200K). Although High Pressure Sodium lamps emit visible light across a slightly more broad spectrum than Low Pressure Sodium lamps, they are still very limited.

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Do high pressure sodium lights use a lot of electricity?

Do high pressure sodium lights use a lot of electricity? HPS or HID lights us about 2–3x the electricity as LEDs for the same amount of Lumens output. But about 1/2 to 1/3 of that of incandescent. So they’re a middle ground in terms of electricity consumption for the light output.

Are high pressure sodium lights dangerous?

High-pressure sodium lights often are used for street and highway lighting. When these lights are turned on, they can produce potentially harmful levels of ultraviolet radiation. … However, cracked bulbs or covers can expose workers to harmful UV radiation, often without an individual even being aware.

How can you tell if a high pressure sodium bulb is bad?

The most common problem with a high pressure sodium light is the bulb. The first course of action is to simply change the bulb. Observe the interior gas tube for any signs of discoloration. If the tube is black, the bulb is definitely burned out.

What causes a high pressure sodium light to go on and off?

High Pressure Sodium Lamps Normal end-of-life is usually indicated by the lamp cycling on and off. As the lamp accumulated burning hours, its operating voltage increases, eventually becoming higher than the voltage supplied by the ballast. The lamp extinguishes and cools.

Which is better HPS or LED?

LED grow lights are more energy efficient. They produce the same amount of light as HPS lights but consume substantially less energy. LED grow lights do not produce as much heat as HPS lights, avoiding the need for additional ventilation or airflow systems.

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What are high pressure sodium bulbs used for?

High-pressure sodium (HPS) lamps have been widely used in industrial lighting, especially in large manufacturing facilities, and are commonly used as plant grow lights. They contain mercury. They have also been widely used for outdoor area lighting, such as on roadways, parking lots, and security areas.

Do high pressure sodium lights need ballast?

HPS lamps require ballasts to regulate the arc current flow and deliver the proper voltage to the arc. HPS lamps do not contain starting electrodes. Instead, an electronic starting circuit within the ballast generates a high-voltage pulse to the operating electrodes.

Can I use a high pressure sodium bulb in a mercury vapor fixture?

Incandescent and mercury vapor lamps in exterior locations should be replaced with metal halide, high-pressure sodium and/or low-pressure sodium lamps.

What is the difference between high pressure sodium and metal halide lights?

The primary visual difference between them is that metal halide light is white and the light emitted from a High Pressure Sodium bulb is amber orange. These bulbs cannot be interchanged without changing their ballast, the regulating element in all light bulbs.

How many lumens does a 150 watt high pressure sodium light produce?

150-watt HPS bulbs provide between 13000 and 16000 lumens of light.

Are HID lights dangerous?

When driving at night, HID lights give the driver more light to see with, particularly in the area immediately in front of their vehicle. In theory, this may make them safer for the driver, but in reality it can actually cause more danger because the strong blue light they emit often blinds other drivers.

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How do high pressure sodium bulbs work?

The HPS lamp consists of a narrow arc tube supported by a frame in a bulb. The arc tube has a high pressure inside for higher efficiency. … The arc then heats up the mercury and the mercury vapor then lights, giving the lamp a bluish color. The lamp heats and the sodium is the last material to vaporize.

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