HPS Bulb

Best HPS Bulb

I’m sure you are excited to start your own vegetable patch! But if you are living in a space with little to no access to natural light, it can really be challenging. With a little help from an HPS Bulb, you’re a step closer to finally achieving your dream garden.

Read our Best HPS Bulb Review to find out.

Our Best HPS Bulb for 2021

Ready to buy your HPS Bulb? We’ve compiled a few of the best to give you an idea.

Eye Hortilux 1000-Watt Super HPS Grow Bulb, 1-Pack, Red

Eye Hortilux 1000-Watt Super HPS Grow Bulb, 1-Pack, Red

This brand has been trusted for years in the lighting industry, and in horticulture, they’re the first choice among gardeners. The 1000 watt bulb provides the intensity that plants need at any stage: seedling, flowering, or fruit-bearing. With its high degree of reliability, you’re sure to get your money’s worth.


  • At 1000 watts, this bulb gives off 25% visible light in violet, green and blue range vs. competitors. A customer said the range is more on the blue side.
  • It promises a warranty for a year so you don’t need to worry about it being defective.
  • It’s environment-friendly so you’ll definitely feel safe using it.
  • There’s a unique brown label near the base of the bulb that turns orange past 10 hours.
  • It has a manufacturing date on the bulb itself, reminding you when it’s time to replace it.
  • Since it’s tested prior to packing, you know you’re getting superior quality bulbs that are ready to use.
  • It doesn’t have lead so you don’t have to feel stressed using it around loved ones.
  • You’ll like that the high spectrum range produces harvests in great quantity, including flowers that are bigger than you expect. A customer review pointed out about plants indeed getting bigger in vegetative state as well.


  • The warranty is not applicable to pre-owned bulbs or those sold by unauthorized dealers.
  • Since they produce intense heat, they aren’t ideal for sensitive plants. Some customer even mentioned being careful about placing flammable substances near it!
  • It is a bit more expensive than others.
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iPower GLBULBH600X2 2-Pack 600 Watt Pressure Sodium HPS Grow Light Bulb Lamp for Plants

iPower GLBULBH600X2 2-Pack 600 Watt Pressure Sodium HPS Grow Light Bulb Lamp for Plants

The iPower Company has been serving plant-growers all over the world for more than ten years. They boast of technical advances in HPS lights, and this bulb is just one of them. It is made of clear, tough glass called Borosilicate, while the arc rod is alkali-resistant polycrystalline alumina oxide.


  • It is very cheap but worth it!
  • You can buy it in boxes of 2, 4, or 6 so you will always have an extra in case the other gives out in the future.
  • It can be used for ballasts that are either digital or magnetic.
  • It emits light that belongs in the red to orange spectrum, which is ideal for optimal flower-blooming or fruit budding. One buyer even commented on not changing his bulbs anymore because they work well for full vegetative cycles.
  • You get value for your money as it still remains 90 percent bright even after 6500 hours of usage.
  • The entire shelf life of the bulb is an average of 32,000 amazing hours.
  • It saves you money because it is more effective in terms of usage and energy output. A shopper even commented that the bulbs she bought really worked for her. That would be useful information before I waste my money on duds.
  • They are 30 percent more efficient compared to incandescent lighting.


  • Although they are very efficient, the power utilized by these lights is lost as excess heat.
  • There is a lag of 5 minutes for it to fully light up.
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Sunlite 03620-SU LU150/MED High Pressure Sodium Light Bulb, 150 Watts

Sunlite 03620-SU LU150 MED High Pressure Sodium Light Bulb, 150 Watts

This is so inexpensive! And at only 150 watts, it radiates intense visible light, with a color temperature of 2100K. It is made of clear glass and other materials consisting of metal. Do not be discouraged by the low wattage as the advantages clearly outweigh the downsides of owning one.


  • It has a long life and can last up to more than 800 days or 19,200 hours.
  • It also comes in 35, 50, 70 and 100 watts, suitable for your more delicate shoots that are very heat sensitive. One consumer agrees that they don’t emit that much warmth, which worked for his plants.
  • It has a brightness of 15000 lumens, encouraging more photosynthetic activity.
  • Since it runs in the yellow light spectrum, it still provides beneficial results in stimulating fruit growth and flowering.
  • The size dimensions at roughly 5x2 inches means it can cover a bigger patch of your plot once you switch it on.
  • If found defective, you can definitely have it replaced within 6 months from the time you originally bought the item.


  • It’s only compatible with s55 ballasts.
  • It’s more ideal for outdoor commercial lighting or industrial settings, although you can still use it for plants
  • It might be a bit difficult to assess if your plants are doing well or not under this type of light fixture due to the nature of its color. If you remove them for a bit, you will interrupt their exposure to much needed light.
  • It only offers a limited guarantee.
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VIVOSUN 1-Pack 1000 Watt High Pressure Sodium HPS Grow Light Bulb Lamp

VIVOSUN 1-Pack 1000 Watt High Pressure Sodium HPS Grow Light Bulb Lamp

The makers of VIVOSUN HPS bulbs have been around since 2009. They’re considered an authority when it comes to producing high-quality products. Their website says they wish to enable plant growers from all walks of life. With so many things to like about this item, they sure keep their promise.


  • This has the highest lumens (140,000) among the choices, making it the ideal light source in terms of brightness for your mini-farm. One shopper was so astounded he gave the product five stars and a “WOW.”
  • Even after being used for a period of about 6000 hours, it maintains efficacy of brightness.
  • The smoky part at the bottom of the glass is not a defect! It serves to hold in any gas remnants and maintain the equilibrium of the chemicals inside.
  • It has a lifespan of up to 32 months or 1000 days, making it an economical choice. One buyer can’t agree more as he’s used them without fail.
  • If you change your mind, you can get a full refund with their 30 day money back promise.
  • Its customer service sends you a tracking number via email so you know when it’s arriving.


  • Eventually, the lumens will diminish, so it is advisable to replace them every year.
  • It can only be supported by ballasts with a trigger voltage of 700 volts and a value of 100K relative to frequency output.
  • The device takes about 120-180 seconds to fully light up – a minimal delay if you are setting up.
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Ushio US5001670 Enhanced Performance HPS Lamp, 600-watt, Opti Red

Ushio US5001670 Enhanced Performance HPS Lamp, 600-watt, Opti Red

Ushio is a product of some of the finest in Japanese technology. Made in European factories that are ISO certified, it comes at a really competitive price. Unlike some of its contenders in the grow light industry, its own unique structure makes it a possible winner locally and even worldwide.


  • This product is lightweight at 8 ounces and unlike bulkier bulb lights that are hard to maneuver, you’ll find it’s easier to handle and set it up.
  • The shape of this light fixture is really thin so you could opt for this if you’re saving space in your house and your garden is not that big.
  • This HPS bulb covers both the red and blue spectrums of light, so you can watch more leaf growth, blossoms or increase in fruit production. You can depend on its consistent performance throughout your plants’ maturation cycle.


  • Unlike other HPS lamps that stop operating when damaged, Ushio does not. Regularly check these kinds of bulbs if you intend to use them for you to avoid exposure to harmful UV, 
  • Packaging errors can be misleading. One buyer said the box contained the incorrect size information.
  • A shopper said the bulb lasted for only 150 days. It might suggest either manufacturing defects or it wasn’t original.
  • You can only maximize its function if the cord length of the lamp is 60 inches from your ballast, which limits how you place it over your greens.
  • You risk malformed bulbs if they are overheated for a sustained period.
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What Exactly is an HPS Bulb?

HPS Bulb

An HPS bulb is a type of artificial light that’s commonly used for indoor gardening. The High Pressure Sodium Bulb, or HPS Bulb for short was developed during the 1950s due to the fact that outdoor low pressure sodium lamps didn’t provide enough visibility. Further technological experiments over the years gave us the bulbs that we know and use right now.

The HPS glass bulb contains a long rod called an arc tube and is made of ceramic. Inside this rod is the sodium and mercury that is needed to create the "arc," or light as we know it. And to hold it in place, it’s housed in a metal structure.

In order for these lights to work, a gadget called ballast is needed to power them up. With this contraption, you can do many things with your bulbs like adjust the intensity of the lights, depending on your plants’ needs.

Why Choose an HPS Bulb

They are Efficient

Gardeners still prefer the HPS bulbs as grow lights because they are effective at producing results. These kinds of lights radiate red and yellow light, and they encourage seedlings to grow and bloom flowers. They’re also perfect if you are eager to see your plants bear fruit. I tried them on my tomato plants and I did not have to wait long to see the results!

They are Long-lasting

The HPS light can last for a really long time so you can use it for as many times as you need it on different plant species without compromising efficacy, even at half its shelf life. In fact, some can even last for 24,000 hours!

They are Cost-Effective

Since they have lasting power, you won’t have to replace them for a long while. You can just focus on waiting for your next harvest. Who knows? You might even sell the extra produce and make a bit of money!

Choosing the Right HPS Bulb

Different factors can be considered when buying the right light source for your green project. Below are some of the basic things to remember before you make that purchase:

Plant Stage

If you just need to nudge those seeds to full growth, then by all means choose a bulb that gives off blue or violet light. However, if your plants have fully grown and are ready to produce fruit, you can decide on a bulb in the yellow, red or orange range.

Take note that whatever color a bulb emits, it will still provide a general improvement to plant health.


Simply put, this is the brightness given off by a light source. Did you know that for each watt, HPS bulbs emit 60-140 lumens? A general rule of thumb is the higher the value, the better it is at helping plants manufacture food, also known as photosynthesis.


Of course, we need an HPS bulb with wattage that’s high enough to produce the heat our plants need. Among the units available for this kind of lighting, the 600 watt light is the most preferred. But if you just need supplemental heating, you could choose the lowest which is at 150 watts.

Limitations of Using HPS Lights

They Need a Ballast to Work

A ballast is an accessory to the HPS bulb that charges it with the right amount of power to make it work.

A word of advice: do your own research when choosing the right ballast for your bulbs. If you already bought one, make sure you carefully check the information on the package to get a ballast that’s compatible to use. This saves you time and money.

I happened to make the mistake of buying an electric ballast that didn’t work for the bulbs I had and I ended up paying for unnecessary fees. Try browsing online to get the best deals for your buck. Most items carry a warranty and offer replacements for defective units so you need not worry.

They Might Pose a Hazard to Health and the Environment

HPS lights give off harmful vapors if they become damaged. Prolonged exposure to these harmful substances like mercury can make you really sick.

From time to time, take stock of your bulbs. Change them after their expiration date. Get in touch with your local recycling center and learn how to properly dispose of these bulbs. This way, it’s safer for the environment as well as for you.


Our list includes some of the best HPS bulbs that you could buy for your starter garden. However, the true winner is the Ushio HPS light bulb as it is proven to be a technical masterpiece.

With its lightweight design, you can mount and change it easily. You can depend on it to wake those little seeds into sprouts. And if you have fully grown plants, the Ushio light can certainly nudge them into bearing, literally the fruits of your labor.

Gardening is a skill to master, and with the right HPS lighting, you’ll be an expert in no time.

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