15 Best HPS Grow Lights and Bulbs of 2020 + Full Buyer’s Guide

The use of HPS grow lights has slowly advanced as more people are warming up to indoor gardening. HPS grow lights are designed to mimic the various wavelengths produced by the sun; essential at different stages of growth.

This article features the best HPS grow lights reviews. I also compiled a buying guide to help you select the most suitable option.

Let’s not beat around the bush, here are some of the best options to buy for yourself… well, your plants.

Top 15 Best HPS Grow Light Reviews 2020

Eye Hortilux Super HPS Enhanced Spectrum Bulb

This HPS enhanced spectrum bulb is an excellent choice if you are looking for higher performance HPS lights. The bulb provides 17% more total energy than other standard high-pressure lamps.

Additionally, the bulb provides 25 % more energy in the blue, violet and green spectrum compared to most other lights.

Pros

  • Provides more energy.
  • Ideal for flowering.
  • High quality.
  • Improved performance.
  • Comes as a pack of two.
  • Great value for money.

Cons

  • Bulbs need replacement every few months.

Conclusion

This HPS grow light is ideal at every growth stage of your indoor plants. It provides more energy and is efficient for months of use.

VIVOSUN 1000 Watt HPS Grow Light Bulb

One of the qualities to look for when buying HPS grow lights is efficiency. This light bulb from Vivosun produces a balanced and efficient spectrum that is essential for plant growth.

The bulb has higher luminous efficiency and stronger penetrating power than regular bulbs. It emits the red and orange spectrum, which is the most energy-efficient sources for lighting indoors.

Pros

  • Energy-efficient bulb.
  • High-performance bulb.
  • Reliable lighting.
  • Great value for money.

Cons

  • Bulbs tend to bust with continuous use.

Conclusion

If you are looking for a reliable HPS grow light, this one is a great choice. Although you might need to replace bulbs regularly, the lighting system is efficient.

iPower 600 Watt HPS MH Grow Light

One of the outstanding features of this grow light is the 600w digital dimmable electronic ballast. It supports both 120V and 240V input and comes with dimmable options.

With the 8-feet heavy-duty cord and the 15-feet lamp cord, you can place the light conveniently. The light has high PAR which helps to promote plant growth.

Pros

  • Easy to install.
  • Optimized spectrum.
  • Heavy-duty, durable cords.
  • High-frequency output.
  • Consistent full bright light.

Cons

  • A flimsy frame on the hood.

Conclusion

This iPower HPS grow light is a fantastic upgrade, thanks to its compatibility with magnetic and electronic ballasts. It is super easy to install and comes with all the accessories to complete the lighting system.

iPower 600 Watt HPS MH Grow Light

This light comes with an air-cooled hood to protect plants from excess heat. Additionally, the hood functions to keep the light close to the plant.

Like the other 600W model, this light supports both 120V and 240V input voltage. The main difference is that it is only compatible with electronic ballasts.

Pros

  • Functional light hood.
  • Various dimmable options.
  • 10-feet durable cord.
  • High-quality mounting bracket.
  • Reliable lighting.

Cons

  • HPS bulb tends to bust with consistent us.

Conclusion

If you are looking for the best HPS grow bulb, this is a viable option. It is easy to set up and comes with quality pieces to customize a reliable lighting system.

5. Apollo Horticulture GLBHPS600 Grow Light

This HPS grow lighting bulb is practical and useful. The lamps produce bright light consistently. With this model, you will need a fan to duct the hot air from the lamp to the outside.

You will love that the ballast is dimmable. This feature means that when your plants are still young, you can run the light at about 50%.

This light is one of the most popular among 600-watt HPS bulbs. Overall, it is a great product and can be ideal if you are looking for quality on a budget.

Pros

  • Bright, consistent lighting.
  • High-quality construction.
  • Great value for money.
  • Energy-efficient model.
  • Comes with a pulley system.

Cons

  • The bulb burns after a while.

Conclusion

Aside from its capable digital ballast, this HPS bulb gives off the perfect amount of light and heat. The lighting system comes with different bulbs to suit your needs.

Hydroplanet T5 Indoor Gardening Grow Lights

It is one of the best HPS grow lights systems on the market. It comes with plug-and-play ballasts to save time and effort. It gives you the best value for your money with the eight grow light bulbs.

More to this, it has 95% reflective aluminum reflectors to enhance lighting efficiency. With the 15-inch power cord, this light is easy to set up conveniently for any grow-room.

Pros

  • Quality material and components.
  • Wide coverage lamps.
  • Compact size.
  • Easy to install.

Cons

  • The light is heavy.

Conclusion

If you are searching for a compact yet wide-coverage lighting system, this is the best choice. It comes with accessories and is super easy to put together.

Sun System HPS Grow Light Fixture

This system is super easy to use and can work well for beginners in indoor gardening. The light has a switch that has options between 250 and 400 Watt bulbs.

Additionally, it can use MH or HPS without any problems. It comes as a complete lighting system giving you the best value while ensuring you have everything you need.

Pros

  • Large spectrum bulb.
  • Plug and play design.
  • Energy-efficient.
  • It comes a complete set.

Cons

  • Tends to get hot quickly.

Conclusion

This product covers a 2 feet square growing room and can be useful as a sprouting light for seedlings or a full-grown plant.

However, you might need to add an air conditioning system to control the amount of heat.

Ultra Sun 901523 150 W HPS Lamp

This HPS grow light is ideal for the fruiting and flowering stages of plants.

The lamps have a Kelvin temperature rating of 2000°K; ideal for multi-stage growth. This feature makes it a suitable lighting system for full-term plant growth.

Engineered for horticulture applications, the bulbs are efficient and useful with different plant’s needs.

Pros

  • Affordable.
  • Excellent quality.
  • Easy to set up and start.
  • Available in various watts.
  • Great light spectrum.

Cons

  • Short bulb life.

Conclusion

If you are a beginner on a budget and starting your indoor garden, these lights are an ideal option. They are quite affordable and produce bright, consistent light.

Yield Lab Pro Series HPS Grow Light Kit

The HPS grow light system can be a fantastic upgrade. The large reflector and the double-ended design ensure optimal use of the bulbs.

Additionally, it covers up to 64 square feet hence suitable for large grow-rooms. The system has improved PAR, and the quality stands the test of time.

Pros

  • High-performance ballast.
  • It comes with an installation guide.
  • Great value for money.
  • Long-lasting bulbs.
  • Extensive coverage.

Cons

  • Pricey.

Conclusion

When it comes to the quality and functionality of HPS grow lights, this model carries the day. All the components are durable, and the system covers a wide area.

Mini Sunburst SBMM15OS HPS Lamp

This single lamp is ideal for producing light over a few plants. It comes in a lightweight, compact design that works for enclosed grow-rooms and small indoor gardens.

With the rope, this lamp is easy to hang and move. You will also love how quiet it is during operation.

Pros

  • Simple, practical design.
  • Easy installation.
  • It comes with a 150-watt bulb.
  • Silent operation.
  • Ideal for small indoor gardens.

Cons

  • The bulb is too small.

Conclusion

This lamp works well for super small indoor gardens, hence the tiny bulb. It is a suitable option for a beginner and comes with a set of instructions for easy use.

TopoGrow Double Ended HPS Grow Light

With the double-ended design, this is one of the best HPS grow light kits.

The system delivers high PAR value which is an essential factor in indoor gardening. The 120V/240V ballast is dimmable, allowing you to set the right level of brightness for your plants.

The system also comes with a 1000w bulb that provides 35% more available energy than standard HPS bulbs.

Pros

  • Highly efficient.
  • Long operating life.
  • Proper light distribution.
  • Long cord.

Cons

  • Thin reflector.

Conclusion

As much as the reflector looks flimsy, it works to help focus the light better. The system, generally, is efficient and easy to use for different setups.

High Yield Lighting HPS Grow Light

This 150-watt lighting system is ideal for small indoor gardens. It has a built-in 10-feet power cord that is compatible with standard household outlets.

The all-in-one ballast and reflector has a tempered glass lens and louvered vent. The package comes with hanger attachment hardware for easy installation.

Pros

  • Well-built design.
  • Functional reflector.
  • Long cord for convenience.
  • Easy to install.

Cons

  • Less coverage.

Conclusion

This HPS grow light may not have the most extensive coverage out there but works well for lighting few plants. It is ideal for small spaces, and the installation process is seamless.

VIVOSUN Hydroponic HPS Grow Light

Vivosun is the best HPS grow light brand and is known for its wide variety.

This model comes as a complete set with a reflector, ballast, and bulbs. The reflector is highly reflective and does not get any hot spots.

The ballast that runs on 120V and 240V has an 8-ft cord for convenient use. It has three brightness levels allowing you to dim the light when needed.

Pros

  • Has a mechanical timer.
  • Hanging accessories included.
  • Optimized spectrum.
  • HPS and MH bulbs.
  • High-quality construction.

Cons

  • The ballast is a little noisy.

Conclusion

If you need an all-inclusive kit to start indoor gardening, then this is a suitable choice. It is the best 1000 watt HPS grow light, and the design is easy to install.

iGrowtek Double Ended HPS Grow Light

You can use this simple double-ended bulb in your indoor garden. It produces rich red and yellow spectra which help to promote the flowering of plants.

With a high PAR, this bulb can cover a wider area and reduce the need for extra bulbs. It is highly efficient and lasts long with regular use.

Pros

  • Long-lasting quality.
  • High performance.
  • Great value for money.
  • Bright, consistent lighting.

Cons

  • Tends to get hot quickly.

Conclusion

If you are looking for the best HPS grow light bulbs, this model is an ideal choice. It covers a considerable area; hence a budget-friendly option. It might get too hot quickly, but placing it a little higher than the plant will prevent any damage.

MIXJOY Double Ended HPS Grow Light System

This lighting system comes with a high-frequency dimmable ballast. It is designed specifically to work with double-ended HPS and MH bulbs.

One outstanding feature of the ballast is that it has four adjustment levels. The system also features a highly reflective hood to maximize light distribution to plants.

Pros

  • Comes as a full set.
  • Easy to install.
  • Energy-efficient bulb.
  • Adjustable brightness.
  • Proper light distribution.
  • Lightweight construction.

Cons

  • Covers a small area.

Conclusion

The HPS lighting system is the true definition of quality and efficiency. Each component is well built, giving you the best value for your money.

Whew, now that that’s out of the way, let’s look at some key points you should keep in mind before pushing that “Add to Cart” button.

Factors to Consider Before Buying HPS Grow Lights

White spectrum grow lights

First things first – the definition of what are HPS grow lights.

HPS stands for High-Pressure Sodium. If you count the number of Lumens generated per watt, HPS is the most efficient.

So, what are lumens?

…a unit of luminous flux in the International System of Units, that is equal to the amount of light given out through a solid angle by a source of one-candela intensity radiating equally in all directions…lumens.com

In layman’s terms, the more lumens a light has, the brighter it is. Watts is the unit of measure for energy used. Lumens, on the other hand, measure brightness.

It is important to note that these two units of measure are not equal.

When you compare the ratio of watts to lumens, you will notice HPS lights have a better ratio.

HPS lights are 40 efficient, meaning 40% of the electricity they use goes into the light itself. For comparison, florescent bulbs are 35% efficient, incandescent a mere 7%, and LEDs are 30% efficient.

Many people compare HPS grow lights to LED lights in terms of efficiency. These lights are different in how they work as far as grow lights are concerned.

HPS grow lights contain a polycrystalline alumina tube pressurized and filled with xenon, sodium, and mercury. They are a type of HID light whereby the electricity passes through the tube producing light.

Because these lights need between 4000 and 5000 volts of electricity to create the ignition of the arc stream, they require a volt modifying ballast.

The passage of electricity through the tube creates a decent amount of heat. It also creates the infrared radiation or infrared light in the yellow/red hue that HPS lights are known for.

But now onto the things to consider before pushing the “Add to Cart” button…

Ballasts

It is a component of lighting equipment that is useful in both small and large grow-rooms. There are three types of ballasts, namely; magnetic, electronic and digital.

Digital ballast is the most common and regulates the voltage of a compact fluorescent light to control overheating. It uses the latest technology in microprocessors to stabilize and monitor the voltage that a bulb receives.

Also, this type of ballast permits the growers more flexibility in manipulating and regulating the voltage that the lighting system receives. With digital ballasts, you can monitor and adjust the voltage of the lights between 400 watts to 1,000 watts.

This feature allows you to control the lighting system’s heat to safe levels. However, ballasts’ output must accurately match the electrical necessities of the light it must regulate. Digital ballasts can be quite an investment but efficient for long-term growth. The design allows up to four lights in a specific voltage.

Spectrum

HPS lights favor the red and yellow-hued light, which mimics fall or autumn light. Light in this spectrum stimulates the plant’s reproductive process such as growing buds.

But, plants need more than yellow and red hues. Plants also require light in the blue spectrum, and using an HPS bulb with an enhanced spectrum will yield the best results overall.

Some people prefer to use a blue spectrum light during the growing or veg phase of a plant. An orange or yellow hue HPS light is most preferred during flowering. When choosing a light, remember flowers and buds do best with high photon infrared radiation or infrared light.

PAR

PAR means Photosynthetic Active Radiation. It is one of the essential features to keep in mind when looking for an HPS grow light. In HPS grow lighting; PAR is the amount of light that is usable to the plants. This means the wavelengths the plants will pick for photosynthesis.

Double-Ended Vs. Single-Ended Designs

Double-ended HPS light is excellent for blooming, fruiting and flowering. It is also useful for promoting vegetative growth. In the blooming production phase, however, the concentrated light spectrum of red light is better.

This feature explains why double-ended lights do better when in bloom production scenarios.

Double-ended HPS bulbs are more balanced than the conventional single-ended HPS bulbs. This feature increases light degree by 10% and PAR output compared to traditional single-ended HPS bulbs.

Additionally, these double-ended HPS bulbs also produce more UV and IR light than those of single-ended HPS bulbs.

Double-ended lights are available in different styles. There are air-cooled models and adjustable-wing style. You can always find one that suits a specific growth stage.

One of the most significant advantages of double-ended lighting is greater footprints from little energy consumption. Based on light degree measurement devices, DE lights produce more illumination.

Also, they cover bigger surface areas, unlike the standard 1,000 Watts light systems.

It is advisable, however, to use double-ended lights in high-ceiling rooms. The increased growing area facilitates larger yields with a large footprint. Higher ceiling heights are mandatory to avoid burning of canopies and other photo-harm effects on the plant.

Double-ended perform well at three to four feet from the canopy. These distances are based on environmental conditions but keep in mind that the higher the light, the larger the footprint and less hot-spot concentrations.

When it comes to the different designs, open-hood reflectors will give off more heat from the bulb than air-cooled models.

Some air-cooled, double-ended grow lights concentrate the light within a confined footprint directly under the lamp. Other open-hood designs spread light for optimal distribution and more extensive coverage.

If you are looking to double your yields, then a double-ended HPS lighting system would be the best option. These lights are designed to increase productivity anywhere from 10, 30, and up to 60%.

Note: Double-ended bulbs deteriorate slower than those conventional, single-ended HPS bulbs. After just 10,000 hours, double-ended grow lights will still give off about 90% of their original intensity.

Ventilation

HPS lights get hot and can damage your plants if not monitored closely. If you live in a cool climate, this may be an advantage. But you will likely need a way to manage the heat. HPS lights are not for suitable spaces with no ventilation.

On this note, you will need an air circulation system such as a fan to control the heat. You can use a fan on the light to help distribute heat evenly while cooling off the area around the plants.

Another option is if you are running a 12 hour on, 12 hours off cycle, have the 12 hour light cycle timed to occur at night. The temperature is naturally cooler, to balance the heat when the lights are off.

Remember, your plants can handle about as much heat as you are comfortable with. If the room feels hot to you, it’s probably too hot for the plants. For example, cannabis thrives in 60 to 75 degrees as it is a mild-climate plant.

Too much heat also causes fox tailing and loss of bud potency. Foxtails are when the bud grows up and elongates or spirals upward. If you see this on the buds closest to the light source, raise the lights to prevent more damage and loss of potency.

Wattage

1000 Watt HPS Light

A 1000 watt HPS light can produce up to 145,000 lumens. It is suitable if you are a commercial grower with a large warehouse. But, if you are growing in your house, a 1000 watt HPS light can be too powerful. A light with this much intensity needs to be positioned higher than a 600-watt HPS light.

A 1000 watt HPS light will also produce a lot of heat. This type can work well in a vast indoor area to heat the large space. But, it will be too hot for a smaller indoor area. If your plants get too hot, photosynthesis will be inhibited, and the plants will eventually burn.

Each 1000 watt bulb can supply light for about 14 plants. However, this depends on setup factors like reflectors, room space, and plant arrangement. These lights need to be hung about 2 feet above the canopy so they won’t burn the plants or hinder photosynthesis.

It is essential to note that a 1000 Watt HPS bulb sustains a lot of light magnitudes. It can result in developing a tough bud structure of the plant. Using this wattage will permit greater light penetration. It means you’ll also obtain healthier bud growth lower in the canopy.

If you are utilizing a ceiling height, most probably, you will get healthier plants by using 1000 Watt HPS bulbs compared to the lower range of wattage. And of course, the coverage will be broader.

How close should 1000 Watt bulbs be from your plants?

It is advisable to place your 1000 watts HPS grow light approximately 24 inches away from the tips of your plants. If you place the light too close, the tips and buds may burn.

You can test the heat by placing your hand on the top of the plant. If the heat is unbearable after a few seconds, then it will damage the buds. On this note, using multiple 1000 watt bulbs will increase the amount of heat produced in the grow room.

In such a situation, you might need to use an air-conditioning system and a CO2 system. These would come in handy to lower the room temp and sustain more C02 for the plants. An increased supply of carbon dioxide permits plants to develop in hotter temperatures.

Here is a brief on how much heat a 1000 watt bulb produces.

Each hour you operate a 1000 Watt HPS bulbs equals to one KW per hour. The number of hours the bulb stays on will help you determine how much is produced.

For example, standard HPS ballast uses a little bit more energy than the bulb, so you’ll use 1.1 KW x 12 hrs. = 13.2. In other words, you would use 13.2 KW/hrs per day per 1000 Watt HPS bulbs.

600 Watt HPS Light

This wattage of HPS bulbs produces fantastic buds. They work best for medium grow rooms. 600-watt bulbs are also useful for a string of multiple high-pressure sodium light bulbs while regulating heat.

600 watts produces up to 88,000 lumens. This size is the most ideal for the home grower. It is quite powerful, without having to hang too high from the plant canopy.

One 600 watt bulb can provide light for about ten plants. But, it depends on other setup factors like the reflector, plant size, space, shape, etc. These lights should be hung approximately 16” above the plant canopy.

For example, 600 Watt bulbs can be placed about 14 inches from the top of marijuana, assuming that you are utilizing an air-cooled tube to eradicate heat from the lamp. Without the air-cooled tube, then you need to raise the distance of the bulb to the plant.

Like with any other bulbs, you can do the hand test to determine how much heat the bulb produces.

Compared to 1000 Watt grow lights, 600 Watt bulbs should be a bit closer to your plants. It limits the total area a 600 Watt HPS light bulb can shelter with high magnitude. But, because 600 Watt bulbs produce less heat, they are safer to plants than high wattage bulbs.

This type of bulb is, therefore, suitable for you if you have a smaller growing room with a lower ceiling.

400 Watt HPS Light

The best 400 watt HPS grow light can support 6 to 8 plants depending on various setup factors. These lights can be hung about a foot over the canopy safely. The 400-watt HPS bulbs are suitable for small grow rooms, like small closets or 3’x3′ grow rooms.

These produce less heat than higher wattage HPS bulbs. They work well for little-enclosed spaces and limited-space rooms. Additionally, they work for mother plants as an alternative to metal halide grow lights.

Although it is a less intense type of bulb in the higher wattage options, 400 Watts can still produce impressive bud growth in plants. The width of those 400 Watts HPS bulbs can shelter those much limited 600 Watts or 1000 Watts bulbs.

It is advisable to plant only one medium plant or several smaller plants under 400 Watts bulbs because the outside corners of the plant will not get tough, dank bud growth.

Note: 400 Watts bulbs emit about 45,000 lumens of light. Meaning, they produce 96 lumens per watt of electricity.

250 Watt HPS Light

250-watt HPS lights can support a couple of plants. These can be hung about a half foot from the canopy. This small-size light also makes a decent supplement for larger setups, especially as an addition during the flowering phase.

Example: Cannabis

The distance between the HPS grow lighting system and the plants, in many cases, is very overlooked.

For example, with cannabis plants, its growers could heighten their yields and potency just by keeping their HPS grow lights at the right distance.

Cannabis gets energy from light and uses it to develop bigger buds. For you to optimize your cannabis yields, you need to give your plants sufficient light as possible, but of course without the risk of light burn.

While fluorescent grow lights such as T5 and CFL don’t produce sufficient light to feed your plants, HPS can do it with ease. But, to get the biggest yields, you must know how to place them correctly.

Increasing light is beneficial; however, there are limits to it. For instance, if you keep your lights too close to your cannabis plants, they might end up bleaching, and nutrient deficiencies might occur.

HPS is one of the most commonly used as the highest-yielding grow lights available for growing indoor plants. It is suitable for the flowering stage, and the light produced invigorate plants to grow tall and produce big buds quickly.

A Simple Guide
  • 150 Watt – covers 2 feet x 2 feet area with a 12-inch distance from the plant.
  • 250 Watt – covers 2.5 feet x 2.5 feet area with a 14-inch distance from the plant.
  • 400 Watt – covers 3.5 feet x 3.5 feet area with a 19-inch distance from the plant.
  • 600 Watt – covers 4 feet x 4 feet area with a 25-inch distance from the plant.
  • 1000 Watt – covers 5 feet x 5 feet area with a 31-inch distance from the plant.

Note: Worn-out HPS bulbs stop giving off as much light compared to new ones. In such a case, you ought to place the lamp closer or replace it with new ones.

Reflectors

With HPS grow lights, reflectors not only help to focus the light but also save the bulb’s life in the long run.

There are two different types of reflectors to choose from. Each is different in design and suit different types of setups.

The open reflector ensures plants get as much light as possible. They come with an adjustable feature to help you determine the distance of the light from the plant.

Air-cooled reflectors, on the other hand, capture hot air and drive it away from the plants. The design allows hooking this type to an air duct exhaust. Air-cooled reflectors are ideal in enclosed rooms and grow tents.

FAQs

Questions and answers sign

Can you do vegging using HPS?

As much as HPS lighting is essential for growth, it might not be the best for vegging. Although most people use it for vegging, HPS could utilize its full power during flowering.

Do you need a ballast for your HPS lights?

As mentioned above, ballasts are essential components of HPS lighting. In Indoor gardening, ballasts work to regulate the current to the lamps to provide adequate voltage for lighting.

Without the use of ballast, a lamp connected to a high-voltage power source is prone to overheating and eventually burning out.

Why do so many HPS light systems include an MH Metal Halide bulb?

The reason so many HPS light kits include a Metal Halide bulb is so that the setup has a broader light spectrum. Metal halide has a stronger blue and violet range, and HPS has a stronger yellow/red range.

The two complement each other, but MH lights are not as powerful on their own. They are light on the yellow and red spectrum light that produces the best yield of buds.

How long do HPS light bulbs last?

Most High-Pressure Sodium bulbs are rated to last 24,000 hours. One year is 8,760 hours. Therefore, an HPS bulb can last more than two years.

However, it is advisable to replace it after 18 months, if you use the bulb continuously.

Can you use HPS grow lights for the whole grow?

You can utilize HPS grow lights for the entire grow and still expect great results. Advanced ballasts allow interchanging Metal Halide bulbs and HPS bulbs.

However, you need to look for this feature in the type when choosing the most suitable light.

Summary

Indoor gardening requires proper planning as well as acquiring the right equipment. The above HPS grow lights are a great starting point as some of the essentials you need.

All are practical and effective, but my favorite has to be the Apollo Horticulture GLBHPS600 Grow Light.

It provides the greatest value for money compared to other options. This lighting system has functional and long-lasting components making it one of the highest-rated HPS light systems in the market. It suits beginners and seasoned indoor growers making it my most preferred option.

2020-03-10T20:07:03+00:00