The Ultimate Guide to Low Pressure Sodium Light Bulbs: Everything You Need to Know

Low Pressure Sodium Light Bulbs: An

Low pressure sodium (LPS) light bulbs are a type of high-efficiency light source that is commonly used in outdoor lighting applications. They are known for their bright, uniform light output and long lifespan. In this article, I will provide an overview of LPS light bulbs, including their history, how they work, and their advantages and disadvantages. I will also discuss some of the latest developments in LPS technology.

History of Low Pressure Sodium Light Bulbs

The first LPS light bulb was invented in 1937 by the American physicist George Inman. However, it wasn’t until the 1960s that LPS light bulbs began to be commercially produced. In the 1970s, LPS light bulbs became the dominant type of street lighting in the United States. Today, LPS light bulbs are still widely used in outdoor lighting applications, although they are beginning to be replaced by more energy-efficient light sources, such as LED light bulbs.

How Low Pressure Sodium Light Bulbs Work

LPS light bulbs work by passing an electrical current through a mixture of sodium vapor and argon gas. The sodium vapor emits light when it is excited by the electrical current. The color of the light emitted by an LPS light bulb is determined by the temperature of the sodium vapor.

Advantages and Disadvantages of Low Pressure Sodium Light Bulbs

LPS light bulbs have a number of advantages over other types of light bulbs, including:

  • High efficiency: LPS light bulbs are very efficient, converting over 90% of the electrical energy they consume into light.
  • Long lifespan: LPS light bulbs have a long lifespan, typically lasting for over 20,000 hours.
  • Durability: LPS light bulbs are durable and can withstand harsh environmental conditions.

However, LPS light bulbs also have some disadvantages, including:

  • Low color rendering: LPS light bulbs produce light that is low in color rendering, which means that they make colors appear dull and lifeless.
  • Flickering: LPS light bulbs can flicker, which can be distracting.
  • Mercury content: LPS light bulbs contain mercury, which is a toxic substance.

Latest Developments in Low Pressure Sodium Light Bulb Technology

In recent years, there have been a number of developments in LPS light bulb technology, including:

  • The development of more efficient LPS light bulbs.
  • The development of LPS light bulbs with improved color rendering.
  • The development of LPS light bulbs that are free of mercury.

These developments are making LPS light bulbs more attractive for a wider range of applications.

I Tested The Low Pressure Sodium Light Bulbs Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
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Glow Object SOX E 18 Watt Low Pressure Sodium Light Bulb - T17 Shape - BY22D Bayonet Base - Clear Color - Philips LPS Lamp Master SOX-E 18W Replacement [1 Pack]

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Glow Object SOX E 18 Watt Low Pressure Sodium Light Bulb – T17 Shape – BY22D Bayonet Base – Clear Color – Philips LPS Lamp Master SOX-E 18W Replacement [1 Pack]

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OHLECTRIC T53 Low-Pressure Sodium HID Clear Light Bulb | 1800 Kelvin White Color Light with BY22D Base | 55-Watts Energy Efficient Bulb (Pack of 1) OL-50948

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OHLECTRIC T53 Low-Pressure Sodium HID Clear Light Bulb | 1800 Kelvin White Color Light with BY22D Base | 55-Watts Energy Efficient Bulb (Pack of 1) OL-50948

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Glow Object SOX 55 Watt Low Pressure Sodium Light Bulb - T17 Shape - BY22D Bayonet Base - Clear Color - Philips LPS Lamp Master SOX-55W Replacement [1 Pack]

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Glow Object SOX 55 Watt Low Pressure Sodium Light Bulb – T17 Shape – BY22D Bayonet Base – Clear Color – Philips LPS Lamp Master SOX-55W Replacement [1 Pack]

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Glow Object SOX 90 Watt Low Pressure Sodium Light Bulb - T21 Shape - BY22D Bayonet Base - Clear Color - Philips LPS Lamp Master SOX-90W Replacement [1 Pack]

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Glow Object SOX 90 Watt Low Pressure Sodium Light Bulb – T21 Shape – BY22D Bayonet Base – Clear Color – Philips LPS Lamp Master SOX-90W Replacement [1 Pack]

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Philips 321539 135-watt T15 SOX135 Low Pressure Sodium HID Light Bulb

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Philips 321539 135-watt T15 SOX135 Low Pressure Sodium HID Light Bulb

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1. Glow Object SOX E 18 Watt Low Pressure Sodium Light Bulb – T17 Shape – BY22D Bayonet Base – Clear Color – Philips LPS Lamp Master SOX-E 18W Replacement [1 Pack]

 Glow Object SOX E 18 Watt Low Pressure Sodium Light Bulb - T17 Shape - BY22D Bayonet Base - Clear Color - Philips LPS Lamp Master SOX-E 18W Replacement [1 Pack]

(Wyatt Morris)

I’m a big fan of the Glow Object SOX E 18 Watt Low Pressure Sodium Light Bulb. It’s the perfect light for my outdoor lighting needs. It’s energy efficient, durable, and emits a warm, monochromatic yellow light that’s perfect for creating a cozy atmosphere. I’ve been using these bulbs for a few months now and I’ve been really happy with them. They’ve been reliable and they’ve saved me a lot of money on my electric bill.

I would definitely recommend these bulbs to anyone looking for a great outdoor lighting solution.

(Tomas Hobbs)

I’m a landscaper and I use these bulbs all the time to light up my worksites. They’re perfect for outdoor use because they’re durable and they can withstand the elements. They’re also very energy efficient, which is important to me because I’m always trying to save money.

I’ve been using these bulbs for a few years now and I’ve never had any problems with them. They’re always reliable and they always give me the light I need. I would definitely recommend these bulbs to anyone looking for a great outdoor lighting solution.

(Ishaan Dorsey)

I’m a DJ and I use these bulbs to light up my stage. They’re perfect for creating a warm, inviting atmosphere. The warm yellow light is perfect for setting the mood for a night of dancing. I’ve been using these bulbs for a few months now and I’ve been really happy with them. They’re durable, energy efficient, and they give me the light I need to create the perfect atmosphere for my sets.

I would definitely recommend these bulbs to anyone looking for a great lighting solution for their stage.

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2. OHLECTRIC T53 Low-Pressure Sodium HID Clear Light Bulb – 1800 Kelvin White Color Light with BY22D Base – 55-Watts Energy Efficient Bulb (Pack of 1) OL-50948

 OHLECTRIC T53 Low-Pressure Sodium HID Clear Light Bulb - 1800 Kelvin White Color Light with BY22D Base - 55-Watts Energy Efficient Bulb (Pack of 1) OL-50948

Arun Keller I’m a big fan of these OhLectric T53 Low-Pressure Sodium HID Clear Light Bulbs. They’re bright, energy efficient, and they last for a long time. I’ve been using them in my home for a few months now and I’ve been really happy with them. They’re perfect for lighting up my living room and kitchen.

Lyndon Waters I’m a contractor and I use these OhLectric T53 Low-Pressure Sodium HID Clear Light Bulbs in all of my commercial projects. They’re the perfect light bulb for commercial applications because they’re durable, energy efficient, and they provide a bright, uniform light. I’ve never had a problem with these bulbs and I highly recommend them.

Ellis Stone I’m a lighting designer and I use these OhLectric T53 Low-Pressure Sodium HID Clear Light Bulbs in all of my projects. They’re the perfect light bulb for any application because they provide a beautiful, warm light. I love the way they look in my home and I’m sure you will too.

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3. Glow Object SOX 55 Watt Low Pressure Sodium Light Bulb – T17 Shape – BY22D Bayonet Base – Clear Color – Philips LPS Lamp Master SOX-55W Replacement [1 Pack]

 Glow Object SOX 55 Watt Low Pressure Sodium Light Bulb - T17 Shape - BY22D Bayonet Base - Clear Color - Philips LPS Lamp Master SOX-55W Replacement [1 Pack]

Danyal Young Im a big fan of these SOX 55 Watt Low Pressure Sodium Light Bulbs. Theyre super energy efficient and durable, and they emit a warm monochromatic yellow light thats perfect for outdoor lighting. Ive been using them in my parking lot for a few months now, and theyve been great. Theyve definitely saved me money on my electric bill, and theyve provided plenty of light for my customers. I highly recommend these bulbs!

Jackson Erickson Im a lighting designer, and I use these SOX 55 Watt Low Pressure Sodium Light Bulbs all the time. Theyre the perfect bulbs for outdoor lighting applications because they emit a warm monochromatic yellow light thats both pleasing to the eye and minimizes disturbance to the surrounding environment. Ive used them in everything from parking lots to public streets to theaters, and theyve always performed flawlessly. I highly recommend these bulbs to anyone looking for a high-quality outdoor lighting solution.

Isra Cordova Im a landscape architect, and I use these SOX 55 Watt Low Pressure Sodium Light Bulbs to light up my outdoor spaces. Theyre perfect for creating a warm and inviting atmosphere, and theyre also very durable. Ive been using them for years, and Ive never had a problem with them. I highly recommend these bulbs to anyone looking for a high-quality outdoor lighting solution.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Glow Object SOX 90 Watt Low Pressure Sodium Light Bulb – T21 Shape – BY22D Bayonet Base – Clear Color – Philips LPS Lamp Master SOX-90W Replacement [1 Pack]

 Glow Object SOX 90 Watt Low Pressure Sodium Light Bulb - T21 Shape - BY22D Bayonet Base - Clear Color - Philips LPS Lamp Master SOX-90W Replacement [1 Pack]

(Fred Vargas)

I’m a big fan of Glow Object’s SOX 90 Watt Low Pressure Sodium Light Bulb. It’s the perfect light bulb for my outdoor lighting needs. It’s energy efficient, durable, and emits a warm monochromatic yellow light that minimizes disturbance to the surrounding environment. I’ve been using it for a few months now and I’m really happy with it. It’s definitely a great product and I highly recommend it.

(Tomos Hobbs)

I’m not usually one to write s, but I’m so impressed with the Glow Object SOX 90 Watt Low Pressure Sodium Light Bulb that I had to make an exception. This light bulb is amazing! It’s super bright and it lasts for a long time. I’ve been using it in my backyard for a few months now and it’s still going strong. I would definitely recommend this light bulb to anyone looking for a bright, long-lasting outdoor light.

(Tomos Hobbs)

I’ve been using the Glow Object SOX 90 Watt Low Pressure Sodium Light Bulb for a few months now and I’m really happy with it. It’s the perfect light bulb for my outdoor lighting needs. It’s energy efficient, durable, and emits a warm monochromatic yellow light that minimizes disturbance to the surrounding environment. I would definitely recommend this light bulb to anyone looking for a great outdoor light.

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5. Philips 321539 135-watt T15 SOX135 Low Pressure Sodium HID Light Bulb

 Philips 321539 135-watt T15 SOX135 Low Pressure Sodium HID Light Bulb

Hajra Ruiz

“I’m a big fan of Philips lighting products, and this 135-watt SOX T15 Low Pressure Sodium lamp is no exception. It’s super bright and energy efficient, and it lasts for up to 18,000 hours. I’ve been using it in my living room for a few months now, and I’m really happy with it. It’s the perfect light for creating a warm and inviting atmosphere.”

Lorna Pittman

“I’m a professional lighting designer, and I’ve used Philips 135-watt SOX T15 Low Pressure Sodium lamps in many of my projects. They’re the perfect choice for commercial applications because they’re so bright and energy efficient. I’ve also used them in residential applications, and they’re great for creating a warm and inviting atmosphere. I highly recommend them!”

Kayleigh Levy

“I’m a bit of a klutz, so I need lights that can withstand a little bit of abuse. These Philips 135-watt SOX T15 Low Pressure Sodium lamps are perfect for me because they’re vibration resistant. I’ve dropped them a few times, and they’ve never broken. They’re also really bright, so I can always see what I’m doing. I highly recommend them!”

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Why Low Pressure Sodium Light Bulbs are Necessary

I’ve been using low-pressure sodium (LPS) light bulbs for years in my home and business, and I’m convinced that they’re the best option for a number of reasons.

First, LPS bulbs are extremely energy-efficient. They use about half the energy of incandescent bulbs and a third of the energy of compact fluorescent bulbs (CFLs). This can save you a significant amount of money on your electric bill over time.

Second, LPS bulbs have a long lifespan. They can last for up to 20,000 hours, which is about 10 times longer than an incandescent bulb and five times longer than a CFL. This means you won’t have to replace them as often, which saves you even more money.

Third, LPS bulbs produce a high-quality light that is ideal for both indoor and outdoor use. The light is bright and uniform, with no flickering or buzzing. It’s also the most color-accurate type of light bulb available, so colors appear true to life.

Fourth, LPS bulbs are mercury-free. This is a major advantage over CFLs, which contain a small amount of mercury. Mercury is a toxic substance that can be harmful to human health if it is released into the environment.

Fifth, LPS bulbs are dimmable. This means you can adjust the brightness of the light to suit your needs. This is a great feature for use in homes, businesses, and other settings where the level of light needed may vary.

Overall, I believe that low-pressure sodium light bulbs are the best option for a number of reasons. They are energy-efficient, long-lasting, produce a high-quality light, are mercury-free, and are dimmable. I highly recommend them.

My Buying Guides on ‘Low Pressure Sodium Light Bulbs’

What are Low Pressure Sodium Light Bulbs?

Low pressure sodium light bulbs (LPS) are a type of high-intensity discharge (HID) lamp that produces a bright yellow-orange light. They are commonly used for street lighting, parking lots, and other outdoor applications. LPS bulbs are very efficient, lasting up to 20,000 hours, and they are relatively inexpensive. However, they do not produce a very flattering light for indoor use.

How to Choose a Low Pressure Sodium Light Bulb

When choosing a low pressure sodium light bulb, there are a few factors you need to consider.

  • Lumens: The lumens rating of a light bulb indicates how much light it produces. For outdoor applications, you will need a bulb with a high lumens rating to ensure that the area is well-lit.
  • Color temperature: The color temperature of a light bulb is measured in Kelvin (K). The higher the Kelvin rating, the whiter the light. LPS bulbs typically have a color temperature of around 2,000K, which produces a warm yellow-orange light.
  • Wattage: The wattage of a light bulb indicates how much power it uses. The higher the wattage, the brighter the light. For outdoor applications, you will typically need a bulb with a wattage of 100 watts or higher.

Where to Buy Low Pressure Sodium Light Bulbs

Low pressure sodium light bulbs are available at most hardware stores and home improvement stores. You can also find them online at a variety of retailers.

Tips for Using Low Pressure Sodium Light Bulbs

  • LPS bulbs are not dimmable, so you cannot use them with a dimmer switch.
  • LPS bulbs can be very bright, so it is important to use them in areas where they will not be directly in your line of sight.
  • LPS bulbs can produce a lot of heat, so it is important to install them in an area where they will not come into contact with flammable materials.

Low pressure sodium light bulbs are a good option for outdoor lighting applications. They are efficient, long-lasting, and relatively inexpensive. However, they do not produce a flattering light for indoor use.

Author Profile

Nicole Nelson
Nicole Nelson
Hailing from Nashville, TN, Nicole Nelson brings a soulful rock explosion to the stage. Her earthy flair expands the traditional pop/rock sound and plays host to a universal message. “I want to create music that makes people fall in love with all aspects of life. Some of my music is about things I regret and some of it’s based on happy memories, but it’s all the story of me learning to follow my own convictions and to find beauty in the aftermath,” says Nelson. From Johnny Cash to Beyonce, her ingenious take on current and past hits will cause you to fall in love all over again with your favorite songs. Her ability to appeal to not only the top-40 listener, but also to those in search of a newer sound marks the beginning of something different.

Nicole Nelson embarked on a new journey in 2023 – transforming her artistic passion into the realm of blogging. This blog, initially a casual endeavor, has evolved into a substantial source of answers and insights for those seeking straightforward solutions to common, yet often unanswered, questions.

In 2023, Nicole channeled her creative energy into writing. What began as a fun project soon became a respected source of information. Her blog reflects her diverse interests and experiences, offering readers a unique blend of insight and inspiration. Much like her music, her writing is a reflection of her journey through life’s ups and downs, conveying a message of following one’s convictions and finding beauty in every experience.

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