6 Best Led Light For 4×2 Grow Tent ( Review and Guide)

(Last Updated On: August 21, 2022)

Do you know how I compare the LED lights and plants? LED light as a placenta and plants like the fetus.

Yes! In the case of indoor gardening, the role of LED lights is like a mother’s placenta as the lights arrange nutrients for growing the plants. So, you understand the urge to choose the best LED grow lights, right? 

It takes a lot of time to research and to know the ins and outs of a LED grow light. However, I have made this clear to my audience by choosing the best led grow lights for. 

In this guide, I will be discussing the best LED light for 4×2 grow tent with important information for indoor gardening. To know more, read through the guide. 

Let’s begin!

How Many Watts For 2×4 Grow Tent

For a 2×4 tent, 40 watts are needed to fix for each plant. For the whole tent, the estimated watt is 200. There are some methods to calculate this, so check these out.

Watt is the unit to measure the quantity of electricity flowing through a wire. Calculating the LED light size is simple but you have to put the right measurements. 

Measure the length and width of your tent. Then, calculate the dimension of the canopy.

How many watts need for a 4×2 grow tent and what size led light for 4×2 tent- these question is often asked by new gardeners. In the flowering stage, the 1 sqft space requires at least 50watts for optimum growth but the vegetative stage needs half of it.

So, you have a grow tent of 4 ft long and 2ft wide. The area of your tent is (4×2)= 8 square ft. Multiplying this value with 50W will provide the required watts- (50 X 8) = 400 Watts. 

Coming to the vegetative stage, the plants need half of the flowering stage’s watt value. So, divide 400 watts by 2, (400 ÷ 2) = 200 Watts.

1. SPIDER FARMER 4×2 LED Grow Light

Key Features

  • Material: Aluminum
  • Energy Efficiency: 2.7 umol/J
  • Energy consumption: 200w
  • Spectrum: Full with white, blue, red, and IR

SPIDER FARMER SF-2000 is the Most popular and best led grow light for 2×4 grow tent.

Why it is the best?

Indoor Plants require special care and SPIDER FARMER LED grow lights are a perfect for this. Speeding up the high energy efficiency up to 2.7 umol/J, the lights provide the gardener with quality crops and higher yields.

How about energy efficiency?

The LED grow lights have featured energy efficiency to an appreciable extent. If you have ever used HPS or SMD LEDs, you will know the energy they consume. The energy consumption results in extra electricity bills.

However, the SPIDER FARMER lights defer energy consumption features and only take up 200w. Compared to the HPS or SMD LED lights, they run 50% less power which is quite wonderful for the gardeners.

Next, let’s look at the customized dimming features. This series of SF has an upgraded dimming knobs switch for its user-friendly nature.

You might not need the same intensity of light all day long and so adjusting it with the knob is a relief for both the plants and gardener. Also, the unified features of multi-light are highly preferable for industrial and commercial purposes.

The lights are one of the best choices for all the growth stages. If you are a beginner, this product is highly recommended for you. Because the lights have featured full-spectrum lights with white, blue, red and IR. Specifically, the white LED provides 3000K, blue, red and IR provide 5000k, 660nm, 760nm respectively.

For the blooming stage, 660nm red and IR light have a positive impact. The indoor gardeners desire to receive more yield in a short time. To add, these LED lights are natural to take care of the plant’s health.


  • Waterproof
  • Noise-free 
  • High performance 
  • Thick aluminum board 
  • User-friendly packaging 

2. Mars Hydro SP3000 2×4 ft Coverage LED Grow Lights

Key Features

  • Max yield: 2.5 G/WATT
  • Efficiency: 2.6 umol/J
  • PPFD: 999 umol
  • Number of lights: 15

Another excellent grow light for 2×4 grow tent is Mars Hydro SP3000. Many professional indoor gardener choose mars hydro over Spider SPIDER FARMER, but price is small expensive than spider farmer.

MARS HYDRO SP3000 has wonderful features for indoor gardeners. You Purchase this product to enjoy the best commercial and personal yielding process.

Consuming only 300w, which save some bucks from your pocket. To get the best results, use this light in 2×5 ft growing are for veg stage and 2×4 ft for flowering.

To get control over the lights, the gardener will get a dimming knob to adjust the brightness. Also, the lights have advanced technology that results in the highest yields.

Thinking of connecting multiple lights?

The daisy light feature helps the gardeners to connect many lights in one connection and MARS HYDRO SP3000 has included this feature. Here, you have to select one of the LED lights as the main light. After that,  you are in control to change the intensity of lights and switching systems. 

Is it friendly for beginners?

Of course, the user-friendly nature makes it worthy for everyone to use the lights. The plants grow naturally well when you set up the tent with full-spectrum LED lights like MARS HYDRO. 

To support both the hydro and soil growth, you can choose MARS HYDRO. However, the lights have a premium price but it’s worth it.


  • Noise friendly 
  • Covers both the veg and flowering stage
  • Helps in the highest yield
  • Comes with advanced tech

Comparison between SPIDER FARMER & MARS HYDRO LED Grow Lights

Light spectrumFull-spectrumWhite light spectrum
Efficiency 2.7 umol/J2.6 umol/J
Noise Noise-free Noise-free 
Price $160-$590$90-$399
Warranty 3 years3 years

SPIDER FARMER or MARS HYDRO – Which one should you buy?

Between SPIDER FARMER and MARS HYDRO, I did find a significant difference. Both of the LED lights provide natural lights to grow the plants spontaneously. 

However, the MARS HYDRO only covers up the white light spectrum which may lack the growth of plants. It might hinder the growth of plants because full-spectrum light can support all the stages of plants. 
If pricing is not a problem, I would suggest my audience purchase SPIDER FARMER. By using these LED lights, you will receive the highest yield.

3. Phlizon Newest 1000W 2x4ft Plant LED Grow Light

Key Features

  • Efficiency: 3.07 umol/W
  • PPFD: 307  umol/m²
  • Actual power: 100watt

Not all my audience has the eligibility to buy expensive products. Some of us may have a tight pocket but buying the grow light might be one of the necessities. For that audience, I am introducing the Phlizon LED 2X4 ft light with the best performance. 

With Samsung LM301B LEDs, the garden will get high light intensity with fantastic lumens. The PAR values of ordinary leds are incredible with less light decay. Additionally, the full-spectrum grow light is adjustable in several environments. 

Besides, the lights are perfect to hand in a greenhouse as an indoor sole source of lights. Though the full-cycle lights are not expensive, you will get the light intensity adjusting option. 

All the LM301B led chips are powerful and include 180pcs 3000k, 72pcs 6000k and 8pcs 660nm red leds. Wherever the lights are hung, they won’t bother you by creating noise. With waterproof tech, no need to take extra care of the lights. 

Another feature to mention is energy efficiency. Not all the grow lights mention directly the actual power but these lights feature 100-watt actual power. Moreover, the light efficiency rises up to 3.07 umol/W.

While handing the lights at 18”, you will see the lights are one of the best LED lights for 2×4 ft grow tent. The gardeners will get all of the facilities in Phlizon LED lights at a budget-friendly price. 


  • Efficient grow lights
  • Budget-friendly 
  • Incredible PPFD value 
  • Water-resistant 
  • Noise-free 


Break in less than 5 months (One customer claimed)

4. Phlizon Linear LED Grow Light for 2x4ft area

Key Features

  • Actual power: 240watt
  • Number of lights: 675pcs
  • Light efficacy: 2.7 umol/W
  • PPFD: 1076 umol/m² 

Phlizon Linear Series is another product I am going to feature. With longer life and lower temperature, the lights run the grow tent perfectly. Starting from indoor lighting to greenhouse, these lights help to flourish the plants perfectly. 

To describe the specification, these lights have 240watt actual energy efficiency. To talk about the light efficacy, it features 2.7 umol/W. Above all, they have an awesome PPFD value of 1076 umol/m². 

Compared to the HPS lights, the yielding of the Phlizon Linera series is more than 30%. Now, the gardeners can replace the old HPS lights and use more efficient LED lights. 

You are getting noise-free functions along with waterproof features. Don’t worry about the heat dissipation because these lights have heat sinks and a hollow body. 


  • Energy efficient
  • Unique functionalities
  • Heat dissipation system 
  • Incredible PAR values


Produces extra heat ( One customer claimed)

5. VIPARSPECTRA P2000- Best LED Grow Lights for 4×2 Tent

Key Features

  • Material: Aluminum
  • Veg coverage: 24” and 4×4 ft
  • Flowering coverage: 20” and 3×3 ft
  • PAR Value: 1624 umol/s
  • Actual power: 200W±3%
  • Frequency: 50-60 Hz
  • Spectrum: 660nm, 3000K, 5000K, IR 730nm

VIPARSPECTRA LED lights have praiseworthy features to describe. Without further delay, let’s get straight to the point. 

The lights are featuring a superior spectrum. So, the plants will grow naturally under these lights with the highest growth performance. 

Having high PAR output, the energy efficiency increased dramatically. The plants absorb the lights properly for a high range of penetration.

What is PAR output?
Answer: PAR refers to the area of plants that conducts photosynthesis. It’s an essential part of light-emitting measurements. 
The unit of PAR is micromole or light per square meter per second. 

VIPARSPECTRA LED lights provide a full-spectrum range for indoor plants and so, the advantages of using the lights are many. The gardener won’t have to spend more money to purchase 2 or 3 lights for the stages of plants. 

With a full spectrum LED light series like VIPARSPECTRA, gardening becomes easier. These lights are perfect for 4’x3’ vegetative coverage at 24” and 4’x2’ area for flowering coverage at 20”.


To get the highest yield, you must hang the lights within the right distance. Then, the highest yield will be visible and. 

Any hassle during the installation process?

This product doesn’t require any installation procedures. Simply hang over the plants at the safest distance, then, plug and play. 

Having the sleep-friendly grow light is bliss as no noise will disturb your attention. You might perform other activities in your grow room. 

Anything else? 

Wait, several interesting features are yet to mention. 

The lights produce heat and excessive heat generation causes obstacles in performance. To prevent these circumstances, these lights have included heat dissipation and heat sinks. 

Additionally, the dimmable function has changed the whole process positively. The knob helps to change the whole light 5-100%. This flexibility is a fantastic option for beginners. 

Now, the plants grow at their best and the gardener enjoys a bumper harvest 


  • Flexible use
  • Superior spectrum 
  • Amazing efficiency
  • Heat dissipation capacity


Didn’t find any

6. Bloom Plus BP1000- Best Led Grow Light for 4×2 flowering coverage

Key Features

  • Material: Aluminum
  • Energy efficiency: 2.7 umol/J
  • Maximum output: 2.5g/W
  • Veg coverage: 3×5 ft
  • Flower coverage: 2×4 ft
  • Spectrum: Full
  • Lifespan: More than 5,000 hours

Are you tired of cable entanglement in your grow tent? I have a solution for you and it’s nothing but Bloom Plus LED grow lights. 

With aluminum in the shade material, the lights are with a sturdy base to provide a durable service in the garden. The LED lights have 336 pieces of Samsung diodes to achieve high efficiency. 

They feature 2.7 umol/J that indicates the power of the lights. Interestingly, the lights consume only 90W of power and the gardeners can save money. 


This feature helps to get more yield from indoor gardening with a 2.5 g/w maximum output.

How much do the lights cover?

This led light is perfect for 2 x 4 grow tent at Flower Stage and Veg Coverage is 3 x 5 ft.

However, the plants grow without burning because the light provides maximum. From seedling to flowering stage, the lights cover up everything with perfection. You will find the recommendation for height and hours for each stage with the lights. 


  • Provides natural lights 
  • User friendly
  • High PPFD
  • Extended lifespan


Generates excessive heat

Frequently Asked Questions (FAQs)

What size LED light for 2×4 grow tent?

Answer: For a grow tent of 2×4 ft, 40 watts is needed to hang for a single plant. In the case of a whole grow tent, the watt value has to be increased to 256 watts at least.

How many plants can fit in a 2×4 grow tent?

Answer: You can place 2 or 3 plants in a 2×4 ft grow tent.

What is the best light for a 2×4 grow tent?

Minimum 200- 256 watt LED grow lights is the best for 2×4 grow tent.

Final words

Finding out the best LED light for 4×2 grow tent was challenging for me. But this is my passion and I love to help the gardeners with my informative words. 

If you are here to purchase the LED light, I would say – pick up any of them because they will burst out with the highest yield, especially the SPIDER FARMER.

On the other hand, if you are a beginner, don’t skip any topic from here. I tried to answer the most asked question by the gardeners. 

Thanks for going through this guide.

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