Best 2×4 LED Grow Light: Top 6 Best Choices for Your Indoor Garden

LED or light-emitting diode technology has a very bright future in lighting, particularly in the horticultural world. However, it is still a relatively recent technology that continues to progress, and the costs of which are steadily declining.

If they were only used for growth a short time ago, we want to introduce the best 2×4 led grow light. This is more and more used to promote the flowering of plants and therefore their fruiting.

Product imagesProduct namesEditor's ratingPrice
KINGPLUS UL600 LED Grow Light4.9See Latest Price
SPIDER FARMER SF-2000 LED Grow Light4.9See Latest Price
SPIDER FARMER SF-1000 LED Grow Light4.8See Latest Price
Barrina T5 Grow Lights4.8See Latest Price
MARS HYDRO TSL 2000W Led Grow Light4.7See Latest Price
Bloom Plus Grow Light BP10004.6See Latest Price

What is LED grow light? 

Without knowing what LED photosynthesis is, you can’t make any idea how to use it. LED grow lights are mass-produced devices that simulate the Sun and provide the best artificial light source for plants to photosynthesize.

Major types of LED grow light

#1. LED grow light panel

There are panels of square, rectangular or triangular shapes. Their ease of installation and versatility in use make them the most common model in horticultural lighting in a private home. There are generally offered with predefined color distribution according to the advertised use.

LEDs grow light panels in private use. The panel is a fairly widespread type of horticultural lighting because it combines several advantages, such as reasonable power, a large cover surface, and ease of installation, which makes it a fairly versatile piece of equipment.

They are made up of several dozen LEDs for the smallest model, up to several hundred for the largest. Their construction is quite compact, with a power supply and cooling system integrated into the same box as the led.

There are panels in the shape of a square, rectangle, or triangle, but the most common and the most practical shape is the rectangle, which is often more suitable for an area containing plants.

To install a panel, once unpacked, all you have to do is hang it above the plants using the fixing system provided, then plug it directly into the main socket. 

#2. LED grow light bar

LED mild bars are one of the pinnacle alternatives for indoor growers because of their software and insurance. Whereas furnishings may be cumbersome and hard to match into tight spaces, mild bars are typically longer and greater slim overall. This approach that they match notably into high-density manufacturing centers like maximum vertical farmers are using, and the elevated duration of the bar makes insurance greater workable and dispersed.

In this post, you will find out about six exceptional forms of LED mild bars, their numerous capabilities, and benefits, and a number of the troubles mild bars can give to farmers.

#3. LED grow light bulb

  • Energy-saving, high efficiency.
  • Lamp life is over 30000 hours.
  • The lamp emits less heat while illuminating.
  • The lamp emits a high amount of photons to help plants have a high photosynthetic yield.
  • The lamp has a specialized light spectrum to help stimulate flower growth

6 best 2×4 LED grow lights

#1. King plus UL600 LED Grow Light

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The Grow lamp UL600 is a support product in cultivation. The design of the Crow led in a classic style is suitable for many room spaces. The lamp has a high level of a more waterproofing system. We don’t worry about affecting the life of this lamp when we use it in the growing glass room. People will save a lot of money when replacing new ones when using this lamp.

In addition, the Grow UL 600 LED offers very high performance with the application of scientific projection housing technology. Power consumption at 80w saves a lot of electricity.

Aluminum is the main material of the lamp. It supports fast heat dissipation which increases light intensity by 30%. Plants will get more energy to grow. Your farming has become a lot easier.

#2. Spider Farmer SF-2000 LED Grow Light

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This lamp has coverage compatible with Samsung LM301B Diode and MeanWell Driver Dimmable Grow Lights Full Spectrum. It has 606 LED bulbs suitable for indoor hydroponics. Lamp frame material is stainless steel and aluminum. This combination has helped me emit a better light source. At the same time, it helps the lamp to have a long life of more than 100000 hours.

The lamp has a capacity of 2000w, so it is suitable for large growing areas. The shape of the rectangular lamp creates a different light distribution pattern. We can estimate the light will evenly cover an area of ​​48 x 34 in with a distance of 27in. The amount of light brought by the lamp ensures low-light plants or trees with a well-developed network.

However, this type of lighting is somewhat difficult to control. It doesn’t have a dimmer switch on the outside of the light so it’s hard to change.

#3. Spider Farmer SF-1000 LED Grow Light

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The product uses the most efficient LED technology with Samsung LM301B diodes. It helps save more than 50% more power than normal. The cost to use this support lamp product is relatively low.

The MeanWell control light series has a convenient control knob and switch. Users can customize the most suitable amount of light for each plant stage. Another advantage of this lamp is that it is silent. Thanks to the MeanWell driver, the heat generated is dissipated through the aluminum body.

One thing you need to know is that this type of lamp has many imitations. You need to be careful in product selection.

#4. Barrina T5 Grow Lights

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Unlike other plant stimulators, the Barina T5 lamp has only a single yellow light. More than 95% of the light of the lamp will be absorbed by the plants. A light combo will include 4 lights of different styles. Between the lights, there is a switch on a separate surface for easy use.

You can use it as a simple bridge in your home, and you can still install the Barrina T5 by yourself. The kit has fully equipped you with everything. Your job is to follow the instructions. In addition, you can also create a system of 16 bulbs to save costs and installation time when using business plants.

#5. Mard Hydro TSL 2000W Led Grow Light

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You need to use lights in the commercialization of greenhouse crops, then choose this light. It is suitable for both 120VAC, 240VAC, and 277VAC power. The lamp integrates dimming and daisy-chaining functions very easily. The lamp design also has a timer and convenient temperature and humidity sensors. It can connect 15 bulbs directly, so it is suitable for use in large rooms.

Lamps produce an artificial light source similar to natural light. As a result, it is suitable for all crops and at all stages of the plant. In addition, the Lamp does well with the hardware to hang very conveniently.

#6. Bloom Plus Grow Light BP1000

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The BP1000 LED Grow Lights used the latest in high-performance LED technology. It has 336 Samsung 2835 diodes which make it extremely energy efficient. Grow lights provide all the right lighting modes for plants at all stages. Blue light, infrared light help promote growth and flowering.

Lamps using Samsung LED chips have increased light intensity by 20%. Plants will have more energy to grow. Along with that, the aluminum frame supports fast heat dissipation, reducing light being converted into heat.

Above are the types of lights that support growing plants in the greenhouse. Each product will have different advantages. Please choose the product according to your needs!

What makes the best grow light?

To help you choose from the wide variety of shapes, sizes, wattages, prices, and more. that can be found on the Internet, let’s see what are the really important criteria to take into account before buying.

  • The price will depend mainly on the quality of manufacture, but also on certain options which can bring a real advantage to the use.
  • For the panels, some models offer fans associated with aluminum heatsinks or the possibility of chaining several panels in the same installation.
  • For lamps, the options that can influence the price are the number of heads, switches, and the ability to vary the lighting intensity.
  • For bulbs, it is mainly the quality of the heatsinks that can make the difference.
  • Be careful to adapt the power of your installation to your needs. Indeed, it will be very different for a small bonsai or a palm tree over a meter high.
  • An important selection criterion is also the warranty period for the equipment. The longer it is, the more confidence the manufacturer has in the origin of the parts and their manufacturing and testing process.
What makes the best grow light
What makes the best grow light

#1. The light flux supplied by LED

You should know that not all plants have identical needs and tolerance levels in terms of light flux.

This is because each species has a maximum value of light that it can absorb before taking damage. Unfortunately, this value is difficult to know and it will be necessary to base yourselves on studies and research carried out according to the different types of plants on this subject.

To have an estimate of the exposure required for each plant, you can go to the Conservation Nature site and in particular to their plant encyclopedia to find out about the different needs of plants (sun / partial shade/shade).

#2. The light spectrum emitted by the lamp

The concept of the light spectrum is very important in the choice of horticultural LEDs. These are the set of wavelengths that are emitted by a source of light, be it the sun or artificial light. The part of the light spectrum visible to our eye extends from 400 nm to 700 nm. Below 400 nm, we speak of ultra-violet and beyond 700 nm, it is infrared.

When all the wavelengths are united in the same luminous flux, the light appears white to us, but if we separate them they are then perceived by our eye as distinct colors. This is what happens when sunlight is diffracted by water drops and we see it as a rainbow.

#3. Power supply

The peculiarity of LEDs is that they cannot work directly on the household electrical network at 230 volts.

In the case of horticultural LED panels, it is preferable to take a model with the remote power supply, rather than integrated, to prevent the heat generated by it from accumulating with that of the LEDs.

#4. The cooling system

The heat is extremely important in the field of lighting it with horticultural vocation or not.

Even though LEDs produce less heat than other technologies, this heat is not negligible and must be taken into account. For panels of a certain power, it is imperative to dissipate the heat to guarantee the life of the lamps, but also in the case which interests us, to avoid temperature increases detrimental to the plants.

There are two cooling techniques: active dissipation and passive dissipation.

  • Active dissipation

The active dissipation is based on fans that extract hot air around the lamps so that it is replaced by cooler air. This principle is simple and proven because it is used in many everyday devices.

  • Passive dissipation

The passive dissipation as the name suggests is not based on any moving part, but on the presence of a piece of metal put in direct contact with the heat source (that is to say, the lamps). Metal has the physical property of dissipating heat in the surrounding air, thereby cooling lamps.

#5. Noise problems

In addition, a poor quality lighting device can in some cases produce annoying hissing or noise.

In conclusion, it can be said that the lower the quality of the lighting device, its components, and its manufacture, the higher the risk of noise pollution.

#6. Sealing of the lighting system

Certain types of plants require fairly high humidity and temperature (carnivorous plants for example). It is therefore strongly recommended to choose lighting equipment that can function and above all withstand these conditions of use.

***Refer to more: Growing Plants With A Desk Lamp – A Scientific And Effective Method

How can you rate the quality of Led grow light?

How can you rate the quality of LED grow light?
How can you rate the quality of LED grow light?

#1. The Efficiency

The lighting of LED grow light needs to be equivalent to the lighting emitted by the Sun. These light sources not only allow plants to grow through photosynthesis but also activate fruiting or flowering thanks to the time of light, Photosynthesis. Without light, plants will quickly weaken (yellow leaves) and die. This process converts atmospheric carbon dioxide and water into carbohydrates (sugars). Chlorophyll is a pigment that absorbs the red and blue components of light and gives leaves their green color. 

Light is essential to the success of your hydroponic system or soil.

#2. The Intensity

To enhance the intensity of horticultural lighting,  reflectors are perfect. Some bulbs will need ballast like HPS and MH bulbs.

Maybe you want to get straight to the point, in this case, Culture Indoor offers you pre-designed interior luminaires to adapt to any surface. Find  kits CFL or kits HPS / MH our

How Should We Measure LED Grow Light? Light intensity or intensity can be measured by the total wattage of LED grow lights. The higher the power, the brighter the light. Another measure is lighting the plants with lamps. Another measure is the photosynthetic active radiation (PAR) of plant growth lamps, which measures the efficiency of plant growth lamps by plant photosynthesis. 

The PAR value was measured as the photosynthetic photon flux density (PPFD) µmol / m2 / s in micromoles per square meter per second. PPFD measures the amount of PAR light (photons) reaching the surface of the plant per second. The effective PAR must be above 500 μmol / m2 / s to be effective for plant photosynthesis. 

G8LED grow lamps have a high PAR of 600-1700 μmol / m2 / s, which means they are very efficient in growing plants. G8LED lamps maximize the energy consumed by the light to provide maximum power output. Grow healthier, intensely flowering plants with more trichomes. G8LED lamps allow you to grow plants with great taste, aroma, and power.

#3. The Range

Your choice of LED garden lights will depend on the surface you want to illuminate. The light coverage of LEDs is determined by their lens angle which varies from 20° to 160°. The larger this angle, the larger the coverage area of ​​the lamp. On the other hand, the photon flux and hence the illumination intensity will decrease accordingly, as it is distributed over a larger area.

Wide lens lights can be very useful for seedlings or young shoots, as they can be placed closer to them and at the same time provide a little extra heat to them.

It is usually advisable to illuminate an area larger than that covered by vegetation to avoid losses to the sides, but this then leads to unnecessary heat consumption and production. So, if possible, calculate the exact size of your area and choose the lights that best suit your needs.

#4. The ratio of different wavelengths/colors of light

The concept of the light spectrum is very important in the selection of LED garden lights. This is the set of wavelengths are emitted by a light source, be it the sun or artificial light. The part of the light spectrum that our eyes can see ranges from 400 nm to 700 nm. Below 400 nm, we mean ultraviolet, and beyond 700 nm, it is infrared.

  • During the development stage of our flora maximum use of light “blue”,  a wavelength from 400 nm spectrum to 500 nm.

By providing enough green light to plants during this time, you may find that they have more leaves, stronger roots, and shorter internodes than unexposed specimens. This is because the plant does not need to stretch these stems to get as much light as possible.

  • During the blooming stage, they mainly use red light. The wavelengths of the spectrum are from 620 nm to 780 nm.

To make these different colors, there are usually 4 types of LED grow lights on the market:

  • LED grow lights (mostly blue)
  • Flowered LEDs (mostly red)
  • Mixed LEDs (with predefined blue and red distribution)
  • Customizable LEDs (allows you to choose colors)

In fact, the majority of commercial horticultural LED panels or lights contain a mixture of colors with a ratio of about 80% red and 20% blue. This is the best compromise because it will fit all situations while avoiding unduly high costs.

It is possible to choose lamps that diffuse the entire light spectrum, thus ensuring that plants always have the wavelengths they need at the right time. Partner of this choice will be higher consumption.

Frequently Asked Question

How many watts led to a 2×4 grow tent?

The smallest variety of watts needed to develop in a 2×4 foot develop tent is forty watts in step with the plant, even though the fine develop lighting fixtures use at least two hundred watts for the complete tent.

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

Two to a few vegetation will be in shape in a 2×4 develop tent. It can range relying on how huge the vegetation is allowed to develop.

Can I have too much light in my Grow tent?

Although an excessive amount of mild can obstruct plant growth, it is also a reasonably smooth hassle to fix. … Experts advise a hundred watts of mild for a 2 foot through 2 foot develop area, as much as 1,000 watts for an eight-foot through eight-foot area.

Can LED tubes be used to grow lights?

You can use any LED bulb to develop flowers if they’re emitting sufficiently mild. Plants frequently additionally search for the warm temperature to return from the mild supply and we realize LED bulbs do now no longer offer a good deal of that.

Can I leave my grow light on for 24 hours?

The solution to the query is no, it isn’t advocated to depart your develop mild 24 hours a day, due to the fact this can pressure plant life to develop quickly. It is good to hold a develop mild for approximately 12 to 18 hours. Too a whole lot mild in diverse increase levels can interrupt a weed plant’s herbal procedure of increase and dormancy.


This best 2×4 LED grow light list is depending on our opinion. You should concern about our suggestions. Let’s make your order to get the best LED to grow light on the market for your garden project. I hope this article will give you great information, thank you for your time.