Best LED Grow Light Reviews 2019 | Top Rated Grow Lights On The Market

As more and more farmers are adopting the practice of growing plants in an indoor environment, LED grow lights have become all the rage. The popularity can mainly be attributed to the ease of controlling various pests and diseases in a very efficient and easy manner. With the introduction of highly advanced LED lights, one does not even have to worry about the plants not receiving enough sunlight. Hence, if you are looking to having the maximum yields out of your crop, the best LED grow lights available in the market can help you achieve just that. The harvest is dense, and the lights are cost effective as well as efficient. You will be able to grow healthy plants without any signs of sunburn and stunted growth. Keep continue to read our buying guide & product reviews of LED grow lights for your ideal pick.

Best LED Grow Lights

How To Choose The Best LED Grow Lights Online?

There are a number of aspects that need to be considered while looking for the perfect LED grow lights for your indoor garden. However, the two most important are the spectrum emitted by the light and the durability. If the plants fail to receive some particular wavelengths of light, it can lead to abnormal growth and various effects. Therefore, an LED grow light should be able to provide an optimal full spectrum so that the plants are not deprived in any way. It is also equally important to look for durable LED bulbs. If they start dying out one by one, you will fail to provide an even coverage on your crops and may end up spending more money for the light replacement.

What Are The Good Quality LED Grow Lights?

There are a number of factors that determine if an LED light is among the best selling LED grow lights on the market. They emit a full spectrum from UV to IR so that the plants are not left derived in any way. In addition to that, these lights are also very energy efficient and give a very high output without using up too much energy. Therefore, in the long run, you will be saving up quite a lot through your energy bills. These lights recreate the exact effects of natural sunlight without too much heating while also allowing you to control the growing environments in a very convenient manner.

How Do LED Grow Lights Work?

LED stands for Light Emitting Diodes. The LED’s are made using semiconductor device. They complete an electrical circuit to conduct electricity and also find in various other devices such as TV screens and traffic lights. The LED’s do not have a filament and do not burn out too frequently like the conventional bulbs. They also have a very low heat output. Since the LED lights function due to the effect of moving electrons that are constantly jumping from a lower to higher orbital and vice versa, they are able to emit packets of energy known as photons, which are the same as those received from natural sunlight. Therefore, the LED indoor grow lights can easily support a natural and healthy growth even in plants that are kept away from sunlight.

What Should You Know About Watts?

Wattage is the rate of energy input required for normal functioning of the LED lights. They usually have very low energy input as compared to the incandescent bulbs while giving a more light output which is measured in lumens. Unlike incandescent bulbs that give more output at higher watts, the LED’s become less efficient as the wattage is increased.

What Should You Know About Light Wavelengths?

There are different wavelengths in the visible spectrum of light, and some of these are more important for photosynthesis. Studies have also revealed that the wavelengths in the red and blue regions are more important for proper growth and development. Therefore, it is important that the LED grow lamps you choose are able to emit these wavelengths vital for the important photosynthetic reactions in plants.

Different Types Of LED Grow Lights

  • LED Grow Lights For Indoor Plants

Different plants can be chosen for indoor growing. Therefore, the leading indoor grow lights are those that can be conveniently adjusted between various crops without affecting the harvest.

  • Top-Selling Light For Growing Weed Indoors

While choosing the finest LED grow lights for weed, you can go through the various LED growing lights reviews as each model tends to have its own pros and cons. More importantly, you should be looking for lights with lenses that allow you to focus the light on certain patches to directly increase the penetration.

  • Marijuana Grow Lights

For marijuana, it is the must to opt for the full spectrum LED grow lights that can emit more than just the red and blue lights. This will give greener and healthier plants while also increasing the harvest.

  • LED Grow Lights For Vegetables

For growing vegetables, one should be looking for LED lights with a wider coverage so that all the plants receive enough light required for proper growth. Look for hydroponic LED grow light that can also be used with equal efficiency for potted plants.

  • LED Grow Lights For Cannabis

Cannabis leaves may turn brown and discolored if the lights used are not suitable. Therefore, it is important to choose the top LED grow lights that emit an optimal and do not cause too much heating when used in a compact arrangement.

What is Full Spectrum LED Grow lights?

  • Colors Of The Spectrum

Spectrum is nothing but the range of wavelengths given out by a light source. A full spectrum LED grow light is that which is able to emit the lights of all different frequencies in the visible spectrum. It is important to note that the different LED lights may not be consistent as far as their spectrum is concerned. It is quite natural for the colors to vary depending on the crop for which it is being used. Most LED lights focus primarily on the red and blue region. However, the ones with a wider spectrum can be used in a more versatile manner.

  • The Right Combination

Plants have different types of photoreceptors present in them. These receptors are the most important in determining their sensitivity to various wavelengths. The combinations can differ slightly depending on the manufacturer and the model. Most have 3 or four band LEDs with red and blue as a compulsory inclusion. Colors such as yellow and green are not seen much in such lights. Some manufacturers also use white LEDs to make up for any shortages in the wavelength range.

Why Just Red & Blue Color LED Grow Lights Typically Don’t Work Well?

Most LED lights tend to emit only the spectrum that is considered essential for the photochemical reactions in pants. However, it is also observed that HPS lights which produce neither of the blue or red lights are able to give perfectly healthy plants with a high yield. A feasible explanation is because keeping the plants restricted to certain wavelengths complete the cycle when the plants are still immature, thereby putting them into a chill mode after which results in stunted plants and lower yield.

What Do You Need To Know About Light Cycles?

Before going deeper into the optimal spectrum required for healthy plant growth, it is important to have a good knowledge about the light cycle. Basically, there are two phases in the light cycle that are known as the vegetative and the flowering phase. During the vegetative phase, the plants absorb those wavelengths from the spectrum that are required for proper development of the roots, shoot, and foliage, thus preparing the plant for the flowering phase. If you start right from the germination, you can do without a lot of light during the early phase, when the sapling barely has any foliage. During this time, it is more important to tend to proper warmth and watering.

The cannabis has a slightly different light cycle as compared to other plants. These lights do not have a sleep cycle but require a lot of time in the dark, mainly for developing strong roots. It is important to keep the cannabis plants in the light for 18 hours and in the dark for 6 hours. After the flowering phase is triggered, this should be changed to 12 hours on and 12 hours in the dark. During this time, it can also be beneficial to switch to HPS bulbs rather than the red and blue LEDs.

The LED lights use Light Emitting Diodes for emitting the lights of various wavelengths. They do not cause incessant heating like other grow lights and also have a very low energy intake. The HID or the High-Intensity Discharge lights are also commonly used in growing indoor plants but are more popular in growing cannabis. HPS or High-Pressure Sodium light is a type of HID lights and mainly emits wavelengths from the blue end of the spectrum. For the perfect growing yields, many farmers switch from one type of the light to the other during different growth phases.

  • Budget

Budget is among the important things to be considered. The higher the budget, the better the quality of the product. Expensive lighting units use LED bulbs from reliable companies. Hence, you will not have the bulbs dying out one by one as is what happens with cheap products. You will be able to provide more even coverage to your crops and also require less frequent replacements.

  • Size Of Grow Space

Although LED grow lights give better coverage than other types of grow lights, the area covered depends greatly on the size of the bulb and the type of crop being grown. The average coverage is 4 by 4 feet at 20 to 25 inches. If the space permits, you can also use multiple lights for lighting up larger patches.

  • Style Of Grow

You can grow your plants in a hydroponic style or have them potted directly into the soil. Then there are different types of arrangement you can choose such as a single layer and shelves. All of these factors should go into determining the type of light that is best suitable for you.

  • Cooling System

If you are growing your plants entirely with the help of grow lights, you will be required to keep them on for as long as 15 to 18 hours. This might cause the bulbs to produce a lot of heat. If the heat dissipation system is not efficient enough, you can easily land up with sunburn and defects. Therefore, it counted to have lights with a proper cooling system.

Factors To Consider In Best LED Grow Lights Before You Buy

To make sure that you have got hold of the right LED grow light for the money you have invested, make it a point to consider the following factors before making your purchase.


Different lights come in different sizes, offer different coverage and also have different weights. Whenever you are buying the best LED grow light, make sure that you have arrangements for fixing the light properly for you definitely do not want them to fall over and destroy your harvest.


Consider the size of the lights as well as that of the area to be planted. If the bulbs are not able to provide enough coverage, you can also use multiple lights given that they do not cause too much heating.


The lights have their coverage mentioned on the pack. Therefore, make sure you take a look before purchasing. Some lights also have special focusing lenses to allow concentrated light to fall over a certain patch.

Heavy Duty Construction

The most common problem with LED light is the malfunctioning switches and dying out of the LED bulbs giving uneven lighting. In order to have a good harvest, it is important that the lights be able to give a steady performance throughout its lifetime. Therefore, opt for lights from reliable manufacturers using premium quality components in their products.

The high-quality cooling system

LED lights do not heat up as much as other grow lights. However, using them for a considerably long period can cause some heating. Using lights with a high-quality heating system can prevent this from happening. Therefore, look for light with high-speed fans with noiseless operation and highly advanced and efficient heat sink using aluminum coils.

Ease of use

You may have to change the setting and arrangement of the grow lights several times during the various growth phases. Therefore, you should look for lights that are compact and easy to install without much hassle.

Variety and control

There are versatile LED lights that can be switched from vegetables to flowers and vice versa with a simple switch. The switches are connected to the fans and different settings operate a different number of fans, thus creating the perfect environment for growing the particular plant. There are no difficult or complicated controls, and the operation is extremely easy.


Most LED lights come with a warranty period of 12 months. However, there are some manufacturers that offer a warranty period of as long as 3 years. Together with the warranty, it is also important to consider the customer care support.

Power consumption

LED lights have low power consumption, and their efficiency tends to decrease at higher wattage. However, sorting for the more efficient ones in the category can help you save more in the long term.

How To Use LED Grow Lights?

  • Do a little research about your plants and find out about their light requirements. This will give a better idea about how to adjust the light settings.
  • Do not place the lights too close to the plants. This might cause discoloration and sunburns. The ideal distance is 20 inches above the plants.
  • Remember that it is not necessary to keep the lights on for 24 hours. In fact, you should allow your plants a night phase of at least 6 hours every day.
  • LEDs can cause water to evaporate from the soils at a rapid pace. Therefore, take care to understand the watering needs of your plants and sticking to it.
  • Do not look directly at the LED lights as it may hurt the eyes.

What Are The Benefits Of Using LED Grow Lights?

Fast Growth

The LED lights provide the plants with exactly the wavelengths that are required for proper growth and development. Furthermore, they tend to all the light requirements during different phases of their growth. Since the plants are grown in a highly controlled environment with all their needs tended to efficiently, they undergo a very quick and dense growth. If done in the right way, they can give very high yields.

Space Saving Design

LEDs allow you to make optimal use of space. You can also opt for growing the plants in stacks without affecting the amount of light received.

Low Running Temperature

This is one of the greatest benefits of using LEDs. They do not heat up like other options for grow lights. However, growing the plants entirely under a grow light means that you will be required to keep them on for a considerably long period. This can cause a little bit of heating. However, most LED lights use superior heat dissipating system that offers a low running temperature, thereby keeping the plants from getting damaged.

Power Efficient

LED lights have a low energy intake and a greater lumen output. They also do not emit heat which can cause an energy drain. The wattage requirements for these lights are very low, mostly around 150 to 200 Watt while comparing to bulbs with 600 wattages. Therefore, you will be able to reduce the energy consumption by a huge degree.

Long Lifespan

LED lights are designed to be highly durable and use reliable and efficient illumination technologies. They usually come with a lifespan of 50,000 to 100,000 working hours which is roughly equal to 10 years. Even if they do not last that long, they will at least cover up for half the amount of the suggested time.

Most Selling Brands Of LED Grow Lights

Before you consider buying an LED light, be sure to go through the indoor led grow light reviews. This will give you a basic idea about the important features to look for and understand the differences between the working of different lights. The following section features LED grow light high times stressing on their very basic features and functioning.

  1. Advanced Platinum LED Grow Light

The Advanced Platinum LED P150 is an indoor LED grow light with a stellar reputation. It has a higher lumen output and is almost 2 or 3 times as intense as other lights. You are most likely to come across the P150 on full spectrum LED grow lights, for they emit an optimal spectrum consisting of all the 12 bands. Therefore, these lights give a highly efficient functioning. They offer coverage of 45 by 35 feet at 18 inches and can replace a 250 W HPS bulb. The lights come with a very long warranty period of 5 years.

  1. Meizhi LED Light

The Meizhi LED lights come together with reflector panels that allow them to maximize the coverage and increase efficiency by allowing the light to penetrate through dense growth. The light emits a full spectrum, thus providing all wavelengths required for the photosynthetic functions during different growth phases. They give the efficiency of a 600W led grow lights while only consuming 277 watts. They come with dual switches for alternating the use from growing vegetables to flowers.

  1. Viparspectra LED Grow Light

The Viparspectra LED grow light offered by customers have been excellent so far. The Viparspectra features reflectors and offers a good balance between the coverage and lumen output. They can be used with vegetables as well as flowers and give the efficiency of a 400 watt LED grow light while consuming only 200 watts. It offers coverage of 2.5 by 2.5 feet at 24 inches and includes an efficient heat sink together with high-speed fans.

  1. Mars Hydro

This section on the Mars Hydro led grow light the basic features and specs of the product. The important highlights are its full spectrum emission, energy efficient operation, easy application, and use, convenient assemblage, and safety certification. It is an entirely eco-friendly product. It covers an area a 2 by 2 feet and gives the efficiency of a 300 Watt led grow light with a wattage of only 150W.

  1. Galaxy Hydro LED

Like with the above LED grow light, this too touches on the specs and features very briefly. There are 100 LED units in this light each from Epiled and consuming 3Watts. The unit has a high lumen output and also sterilizes and kills the bacteria that happen to infect the plants. It comes with two cooling fans for better heat dissipation and can be used with vegetables as well as flowers.

  1. King Plus LED

The King Plus LED grow light comes with a double chip and gives very intense light output at a very reasonable cost. They offer a uniform light distribution and emit a complex spectrum for optimal results. They also have a very efficient cooling and wide coverage.

  1. Apollo LED Light

The Appollo grow light feature very compact designs. They use 3 and 5 watt LED chips and come at various wattages including 75, 135, 180, 240, 288 and 30. They offer enough light intensity to be used with both vegetables and flowers. They have a wide spectrum of emission and reflector panels so that the light is distributed more evenly on the crops.

FAQs To Know About LED Grow Lights

Which Color Spectrum Do I Need For My Plants?
This varies depending on the light cycle the plant is going through as well as the specific light requirements of the plant. It is not entirely true that the plants require only red and blue lights for proper growth and development.
How far should led grow lights be from plants?
The lights should be kept at a height of about 20 inches so that the heat is not damaging or affect the growth negatively.
What is the maximum number of plants that I can grow under the lights?
As much as the growing space and the coverage of the light allows. If the coverage is not sufficient, you can also use multiple lights to make sure the plants are not deprived.
Why vegetative footprints are comparatively big than that of flowering footprints?
Because the plants need longer periods of light during the vegetative phase, which can be gradually decreased as it nears the flowering phase.
Why aren’t there different lights for vegetation and flowers?
Many people do change their lights in between. However, there are also a number of lights that can be used during both the phases. Sticking with the same light during the vegetative as well as the flowering phase ensures that the plants do not go through a shock when the spectrum is suddenly changed. Also, using the same light throughout gives denser and better quality flowers.
What should be the distance of the lights from the plants?
At a height of about 20 to 25 inches above the plants.
Do LED Grow Lights Become As Hot As HID Systems?
No, they are almost 70 percent cooler as compared to HID systems.
How much money can I save by using LED grow lights?
The LED lights can help you save anywhere from $150 to $300 on a per year basis.
Which Type of Indoor Grow Light Will Give A Longer Lasting? LED or HID?
The average lifespan of an HID bulb is 10,000 hours while that of an LED bulb is 50,000 to 100,000 hours.
Will LED Grow Lights Damage My Crops?
No, if used appropriately, LED lights do not damage crops. Instead, they give a denser and better harvest.
Can led lights grow aquarium plants?
It is possible to grow aquarium plants with LED lights. However, you should be very careful in choosing the light as well as the plants.


When you are looking to buy the best LED grow lights, it counts to be as informed as possible. This review has covered a lot of aspects concerning these lights. You should make sure to inspect every feature and specs so that you know exactly what you are getting. The lights should be able to emit all the wavelengths required by the plants. If you go a step further, there are also lights that help to control the bacterial infestation on plants. Therefore, once you master the use of LED lights, you will be able to grow your plants very conveniently with a very high yield.


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