Top 10 Best grow light for 4×4 tent In 2023

There is an ongoing debate about the Best LED Light for a 4×4 grow tent for indoor plants. Some say that great features matter, while some believe higher efficiency is key, and so on.

So, in this guide, I will be detailing the best LED grow light for a 4 x 4 tent!

If you ask me which one is my favourite LED grow light for a 4×4 grow tent, then it’s: ViparSpectra KS3000 LED Grow Light.

Get ViparSpectra KS3000 LED Grow Light Now!

Best Led Light For 4×4 Grow Tent

In my years of being a grower, I found the ViparSpectra KS3000 LED Grow Light to be the best. It has excellent heat dissipation, it’s waterproof, and it is a full-spectrum light, which simply means that its glow is similar to that of the natural sun. I’ll discuss more on why I chose this as the best LED light in the latter part of this guide.

For now, let me briefly discuss what makes LED grow lights good and effective.

What You Have to Consider When Choosing LED Grow Lights

What You Have to Consider When Choosing LED Grow Lights

Not all LED grow lights are made equally. There are grow light brands that purposely make lights for warmth and heat; there are those designed for its dimming and light intensity, while there are other lights that consider cool features as a crucial factor, and so on.

I’m going to end that debate by laying out the best and most important considerations you need to factor in when choosing the LED grow light for your cannabis plants.

Type of Grow Light

Type of Grow Light

If you think that there’s only one type of grow light (LED grow light), think again.

In fact, there are three (3) types of indoor grow lights: LED, HID, and Fluorescent. According to experts, to ensure the proper growth of your cannabis plants, you must consider and factor in the type of light you put under.

Let me discuss the differences between these types of grow lights.

Light-Emitting Diode (LED)

Light-emitting diodes or LEDs are the newest, most modern, but the hottest and most sought-after type of grow lights. These lights emit 90% or more light without putting in too much heat.

It has high light intensity without burning the plant canopy and worrying about it.

High-Intensity Discharge (HID)

HID or high-intensity discharge, is the classical or traditional artificial lighting used by growers and cultivators. These grow lights are considered “the best” before LED because of their high light intensity.

However, unlike LED, the heat emitted by HID is also extreme. Therefore, you’ll need other equipment for heat dissipation, such as cooling fans, AC units, or a cooling system to supplement it.

HIDs are also categorized into two (2) different types: high-pressure sodium (HPS) and metal halide (MH)

CFLs or Fluorescent

Last but most definitely not least are Compact Fluorescent Lamps or CFLs. CFLs or fluorescent lamps are options taken by growers of indoor plants because they are cheap, inexpensive, and have the necessary warm white light spectrum cannabis plants need to mature and grow.

Different plants can benefit from it as they put off less heat than HID, but they’re also a bit dimmer and subtler than them.

Light Spectrum

Light Spectrum

Another factor you want to consider would be the light spectrum. Marijuana plants require different spectrums in various growth stages; therefore, you need to ensure that the light you’re using fits the particular stage perfectly.

Here’s a quick guide to the light spectrum needed by cannabis per growth stage of their life cycle:

  • Seedling Stage —white light (30%), blue light (30), red light (15%)
  • Vegetative Stage — blue spectrum
  • Flowering Stage — red and white spectrum

Heat Emission

Heat Emission

Other than the light spectrum emitted by grow lights, marijuana plants also need heat that differs from one particular stage to another. Too much heat emitted can be bad for both the texture and quality of the plant; not putting in too much heat, however, is as bad.

So, you need to make sure that the distance and temperature of your grow lights are on point.



You don’t want to buy LED grow lights monthly, right? I don’t know about you, but in my opinion, I try to maximize my grow tent, grow space, and grow lights so that they can last long without me having to replace them.

The most important part about maintaining grow lights would be by looking at their power consumption. Power or electricity is the one that controls the voltage and wattage of the light, and therefore, it’s just right to make the necessary considerations about it.

Plant Growth

Plant Growth

As I mentioned above, different stages in the plant’s life cycle require different types of lights. Therefore, you also need to take into consideration how fast or slow the growth and maturity of your plants will be.

TIP: You don’t necessarily have to have different types of LED lights and grow lights inside your grow space. Altering the distance as well as the light intensity will be enough to accommodate the light requirement of your cannabis plants.



Let’s not be hypocrites here — the price or the cost is probably the factor that we all look into. And while securing yourself a cheap LED grow light is good, it might be drastically damaging to the conditions of your greens.

Cheap LED grow lights won’t have all the features you’re looking for, not to mention the quality of light and efficiency they can give you. So, don’t be too frugal when it comes to choosing your grow lights.

Today is your lucky day, though; why? — Because I’ll be listing 10 of the best LED grow lights you can use for better energy consumption, higher power, and more efficient usage without the hefty price tag!

Top 10 LED Grow Lights For 4×4 Grow Tents.

I always get asked about the best LED grow light, and I always give people a list of the collection of the best LED grow lights I have either tried or read about based on light reviews and customer feedback.

So, here’s my list of the best LED lights for a 4 x 4 grow tent!

ViparSpectra KS3000 LED Grow Light: Editor’s Choice

2022 ViparSpectra KS3000 LED Grow Ligh


  • Excellent efficiency.
  • Perfect for a small-to-medium-sized grow tent.
  • It can be in 3000K, 5000K, and even 660nm for better cultivation.


  • The driver cannot be mounted onto the light; it’s designed to hang.
  • A lightweight piece; it can be knocked down.

For me, the ViparSpectra KS3000 LED Grow light is the best because of a few factors, including the superior heat dissipation feature, even distribution, optimal and synchronized full-spectrum light, as well as the fact that it can be installed and set up easily.

It’s complete with large-sized aluminum heat sinks that are the best for any grow tent you have — and yes, it’s effective even if you don’t have an air-conditioning (AC) unit inside your grow tent!

This top-notch lighting option is equipped with Samsung LED chips (LM301H, in particular), which are known for maximum yields and growing plants in the best ways possible.

Many growers say that this LED grow light is made for a 4 x 4 grow tent, but in my experience, it also fits a 3 x 3 grow tent and is just right for a 2 x 4 one!

Save on your electricity bills, never worry about installation, and ensure big and maximum yields from your cannabis plants without worrying about emitting more heat!

PhytoMAX-3 4 x 4 LED Grow Kit: Runner-Up

PhytoMAX-3 - 4X4 Complete LED Grow Kit


  • The complete package as it includes an LED light, a grow tent, and other cultivation equipment.
  • Perfect for beginner to novice growers.
  • The company offers FREE SHIPPING.


  • The LED light is not as intense and as comprehensive as other lights.
  • The fans weren’t enough to supply the correct humidity; you’ll need extra fans.

If you’re looking for a grow tent kit, or a complete collection of growing equipment, then the PhytoMAX-3 LED grow tent kit is the perfect and ideal product for you. The product is complete with all of the equipment a grower needs for cannabis, as well as other plants.

And I’m not just talking about grow tents, grow lights, and pots. When I say that it’s complete, I mean that it is complete from A to Z — top to bottom. This high-efficiency grow tent kit has duct tapes, AC fans, a carbon filter, a timer, and a digital hygrometer for monitoring the perfect temperature and humidity that your plants need.

The best thing I loved about this grow tent kit is the fact that its inclusions do not stop at harvest. It also has additional equipment for trimming, drying, and curing, too! Talk about the best value for your money!

TIP: The PhytoMAX-3 has different options for LED light; you can choose the PhytoMAX-3 8SH, which is perfect for basic flowering and vegetation; the PhytoMAX-3 12SH is made for commercial vegetation and flowering, and lastly, the PhytoMAX-3 16SH that is perfect for extreme levels of business and for more energy needed for flowering.

SPIDER FARMER SE5000 LED Grow Light: Most Versatile LED Grow Light


  • The driver is removable and can be brought and installed to different locations easily.
  • Maximum yields are guaranteed, thanks to the comprehensiveness of the spectrum.
  • The lights aren’t uniform and dull.


  • Screw damage is common, usually upon receiving the item.
  • A heavy LED light than the usual.
  • Hotter than what’s advertised but manageable.

If you’ve been trying to look for an excellent 4 x 4 grow tent lighting option for some time now, then you probably have heard of the company SPIDER FARMER. They’ve been in the highest ranks for years, all due to their equipment’s versatility and adaptability.

Among their many LED grow light offers, what I loved the most from SPIDER FARMER is the SE5000 LED Grow light.

The SPIDER FARMER SE5000 LED grow light is perfect for a 4 x 4 grow tent, thanks to the ultimately controlled 480 watts with about 1,333 μmol/s. It utilizes Samsung LM301B diodes, which are known in the industry for their high-yielding capacity and low maintenance requirement.

Its design is similar to that of a bar light. It is made with an aluminium material mounted at the back, contributing to better and easier airflow, which eradicates excess heat emitted. Moreover, it also has a daisy chain capability where you can connect up to 30 SPIDER FARMER usable bulbs simultaneously.

The SPIDER FARMER SE5000 is waterproof and has a driver that can be manually mounted and removed. You can use the SPIDER FARMER SE5000 from the vegetation stage, the early flower stage up to the later flower or harvest stage, thanks to the variation of light intensity and dimmability.

Medic Grow 660W Fold-6 LED Grow Light: Best Foldable Grow Light

Medic Grow 660W Fold-6 LED Grow Light



  • Dimming doesn’t get below 300 watts.
  • Energy consumption is not as what was advertised, but it is low.

The Medic Grow 660W is what many growers consider the best 4 x 4 grow tent light because of how it’s structured — it’s foldable to 180 degrees, and it’s a plug & play type of LED light.

Equipped with a total of six (6) bars, you can be sure that the distribution of light to the plant canopy will be even and distributed accordingly. Furthermore, the grow light also has a programmable V1 spectrum, which is an effective tool in ensuring that the light adapts to the growth stages of your cannabis plant.

You can daisy chain up to 75 lights, and it has a high photosynthetic photon flux (PPF) (1848 μmol/s), its wattage only sits at 660W, and many more!

Give your plants the light it needs with less energy and less electricity consumed with the Medic Grow 660W Fold-6! Whether you’re a personal grower or a commercial grower and you like to take advantage of a low-heat type of grow light that is flexible, foldable, and entirely adaptable to any type of grow tent, this will be the best value for your money.

Mars Hydro TS 450W 3000: Best For Light Intensity

Mars Hydro 450W TS 3000 LED Grow Light


  • Reasonable price and extremely placed value on the purchase.
  • It covers a 4 x 4 grow tent perfectly, but it can be used for 3 x 3 or those larger than 4 x 4, too.
  • Efficient energy savings.


  • If screws aren’t put tightly, there is a high chance of disconnection.
  • Bright is too light even if the hanging height is high.

The Mars Hydro TS 3000 (450W) is one of the most efficient and effective grow lights if you are looking for a high intensity of light, even if confined in a small given space.

It is energy-efficient, perfect for cultivation, and can produce usable light similar to that of the natural rays of the sun. I’ve seen a lot of grow tents using the Mars Hydro TS 3000, and they got nothing but praise for it.

This daisy chain-compatible system will drive your 4 x 4 grow tent with all the light intensity it can give out.

The light spread is 10 times better than its predecessors (it attracts light spread in all directions) and older Mars Hydro units and versions, thanks to its patented reflective hood.

You’ll be getting all that for your 4 x 4 grow tent, which is great because you won’t have to deal with excessive amounts of heat, and you’ll never worry about the type of light for a particular growth stage — all with a full-spectrum light that can cover a wide and large area.

ION 720W LED Grow Light: Most Robust and Long-Lasting Grow Light

ION 720W LED Grow Light


  • Excellent lighting with little-to-no heat involved.
  • One of the best LED lights that really has no heat at all.
  • The coverage was wide and great.


  • 0% heat, absolutely cool, which could be bad because sometimes plants need a bit of heat.
  • Too light, when it gets windy, the fixture can fall off.

A lot of growers’ primary concern with their grow lights would be of strength and durability. And if you are part of that demographic, you’re missing out on a lot of good things if you’re not using the ION LED grow light 720W.

To start off, it’s IP-65 rated, meaning it’s entirely waterproof and dustproof. Its aesthetics also boasts of its clear and slim design that is crucially foldable for storage and safekeeping purposes.

Another thing they take pride in would be their 2-part spectrum — they have a balanced colour spectrum and a 3K horticultural full-phase spectrum, too. No other type of grow lights were able to produce this kind of versatility when it comes to lighting.

Made with state-of-the-art efficient drivers and high-technology OSRAM top bin diodes for its bulb, you’ll never worry about it not being energy efficient! It has a life rating that is above 54,000 hours in total, ensuring that your cannabis yield will be at its maximum capacity!

Mars Hydro SP 3000: Best Grow Light For a Boosted Red Light

Mars Hydro SP 3000


  • Highly cost-effective and economical.
  • Covers the full spectrum for all growth stages.
  • Strong and durable with no noise.


  • No on/off button.
  • It can get super hot, especially if run without fans and HVAC.

Another Mars Hydro product on this list is the Mars Hydro SP3000. Straying from the ever-famous Mars Hydro TS series, the SP3000 is a secret kept by many veteran cannabis indoor growers.

Let me start off with its overall composition.

The SP3000 is a big-sized, single LED strip grow light run by powerful Samsung LM301B chips. It weighs about 13.9 pounds, and it has IP-65, RoHS, ETL, UKCA, and CE ratings.

From these ratings and standards alone, you already know how legit this product is. This particular grow light has been famous for its Red Spectrum perfection; it’s capable of interacting with a Dark Red Light Spectra 660nm, contributing to the excellent formation of flowers and dense buds from your cannabis.

Operating with deep penetration technology, the light wouldn’t just be nudging the plant canopy — it’ll be penetrating down to the base or bottom part of the plant, transfiguring via its leaves, branches, and stems!

It is the ideal grow light for 4 x 4 grow tents, as much as it can be used for 4 x 5 tents, too! The lifespan is above 50,000 hours of total use, and you’ll definitely be able to witness a full-spectrum LED grow light that is versatile and flexible as it is.

California Lightworks SOLARSYSTEM 550: Best Light Fixture Style

California Lightworks SOLARSYSTEM 550 Best Light Fixture Style


  • The controller adds the necessary value and can be a one-flip type of button.
  • High-quality light that penetrates the canopy properly.
  • The overall material is good and high-quality.


  • The controller is an “additional purchase”.
  • Without the controller, you’ll have less access to its controls.

Probably one of the least-known brands, California Lightworks is slowly setting its foot in the LED grow lights industry. Their flagship product? — the SOLARSYSTEM 550.

The product features cutting-edge high-efficiency LEDs with high-tech control and commercial, as well as operational features. This LED light is being used by a lot of farmers, growers, and scientists in laboratories and experimentation settings.

From this alone, you know that you can use this in any grow space or grow tent you may have in mind.

With a PAR output of 1,005 PPF and heat output of 1,280 BTU, it can absolutely maximize bloom coverage in your 4 x 4 grow tent. Furthermore, its strength isn’t just about emitting less heat, consuming less energy, or giving excellent amounts of concentrated light — but also in terms of flexibility.

The fixture is designed in such a way that it’ll be able to cover different sizes of grow tents in various locations. So, whether you have a 4 x 4 grow tent, a 6 x 6 grow tent, or even a 2 x 4 grow tent, California Lightworks can be the brand of grow lights that you’ve been looking for.

AC Infinity IONBOARD S44: Most Optimized Light Spectrum

AC Infinity IONBOARD S44, Full Spectrum LED Grow Light 400W


  • Heavy, but it says a lot about how durable and efficient the product is.
  • Equipped with brightness and dimness settings.
  • No noise when it’s being used and powered on.


  • Expensive for the features and functionalities it has.
  • The light can become too hot, so you’ll need to turn it off.

What do you think will be the difference if a light manufacturer uses the same technology with the same types of materials? — Optimization and positioning.

AC Infinity’s IONBOARD S44 is a full-spectrum LED light that’s been designed with the accurate algorithmic positioning of the popular Samsung LM301B. It’s set like this so that your cannabis yields are maximized.

The product is built on an aluminium unibody board and is engineered to help heat dissipation and extend the diodes’ lifetime over time. It has an LED driver that can be toggled from 0 to 100% dimming with a knob for light intensity adjustments.

Kind LED X220: Best Grow Light For Longevity

Kind LED X220 Targeted Full Spectrum LED Grow Light


  • Maximum light and plant efficacy.
  • Small, compact, and light but carry intense power.
  • Guaranteed to have less power consumption.


  • Could need an extra unit for a 4 x 4 grow tent, especially if the plants require more light.
  • The dim function is not as dim as how it’s needed.

Last on the list is none other than Kind LED X220. Kind LED grow light is known to be one of the more famous units of the brand before because of the style and overall fashion of the light fixture.

It boasts of a combination of Red + UV + IR wherever and whenever you need it. The light spread is good with 3.5x better light distribution, which can make its hanging height slightly higher than what’s recommended.

In case you were wondering how many watts are needed to produce the light, it’s just a shocking 220W. The balanced and full-targeted spectrum will be perfect for different types and sizes of grow tents that need it.

In case you were asking, “what is the best grow light for 4 x 4 grow tents this 2023?” These are my bests, and I can assure you that you wouldn’t be able to find another list as complex and as comprehensive as this!

Should I Hang My LED Light?

Yes, it is most advisable to set and position your LED light to the best hanging height because it will help mimic natural sunlight that reaches the overhead of the plant. In addition, it’ll also be able to reach the entire width and length of the plant.

TIP: Many expert growers would tell you that you can make your LED lights stand beside your cannabis plants, but that’s incorrect. A few inches closer is crucial to the overall wellness and being of your marijuana plants.


Do you think that your plants need more than these? Do you think you need to know and learn more information for the best cannabis yield? Here is a list of the most frequently asked questions (FAQs) about the most efficient LED grow light for a 4 x 4 tent!

How Much Can a 4 x 4 Grow Tent Yield?

The amount of yield you can get is not entirely dependent on the size of your grow tent. In terms of size and technicality, though, a 4 x 4 grow tent can yield anywhere between 1 to 2lb or 16 to 32oz. A grow tent that size can easily accommodate around eight (8) to nine (9) medium-sized plants.

How Many LED Watts Do I Need For a 4 x 4 Grow Tent?

Generally, you’ll need about 20 to 30 watts of light per square foot in order to make your cannabis plant flower. So, you’ll need more or less 400 watts in your 4 x 4 grow tent. Many beginners and novice growers often commit the mistake of putting too much light on a to grow tent with the thinking that it will be better for plant growth, but no, that’s not how it works.

How Far Should 1000-watt LED Lights Be From Plant Canopy?

In terms of placing your LED grow lights inside your grow tents, you want them to be between 36 and 46 inches above the plant canopy for 1000W LEDs, while 200W to 500W LEDs can be 12 to 20 inches above.

What LED Lights Do Professional Growers Use?

Professional cannabis growers and cultivators typically use CFLs or HIDs for growing their indoor plants. Slowly but surely, these are being replaced by the best LED grow lights because they’re more energy efficient and they emit less heat.

Can You Have Too Much Light in a Grow Tent?

Yes, it is possible for your grow tents to be “too hot” in the sense that your cannabis plants can be dehydrated because of it. Leaf burning is one of the more obvious signs that your grow tent is currently under too much heat. This is when your leaves start turning yellow, even if it’s not approaching the end of the flowering period yet.

How Much Area Does a 1000-Watt LED Grow Light Cover?

An LED light with a wattage of 1000W can cover up to seven (7) to eight (8) square feet with equal distributions. Of course, the more lights in your big grow tent, the more it covers.

Final Thoughts

If you think finding the best LED light for a 4×4 grow tent is complex, I won’t lie — it will be at first. Putting in great value to your grow equipment is something that will set you up in the long run in your journey to being an expert grower.

So, try to consider these 10 LED grow light options I’ve listed and make the challenging part of being a cannabis grower easier!