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Top 10 Best 300 watt Led Grow Light – Check Updated Reviews 2019


The use of LED technology has revolutionized indoor growing. Whether you are a beginner of professional, you need to provide your plants with effective lights so that you can get healthy plants. If you are looking for the best 300 watt led grow light, this guide and reviews covers the right models that work well and meet your needs.

We all know that plants require the right illumination to grow. Grow lights provide the needed illumination to provide indoor plants with the energy that is required to grow and blossom.

LED (Light Emitting Diode) is a type of lighting system that utilizes less energy and produces brighter lighting. This is why they have become popular among many indoor growers. Additionally, LEDs have an efficient cooling so there are little chances of getting hot and bursting.

There are many indoor grow lights you can find on the market today. However, not all work well so you need to be concerned about their efficiency. If you have a smaller garden with few plants, then there is no need of spending your money on a heavy duty bulb. Therefore, we have reviewed top ten models so that it will be easy to find the right 300 watt bulb that meets your needs.

Top 10 Best 300 watt Led Grow Light - Reviews

Selecting the right LED lights should be based on your needs. You need to pick depending on the type of plant, grow space and plant phase. Here are reviews of the recommended 300 watt LED grow lights that work well.

iPower GLLEDXA300CNEW 300W LED Grow Light Full Spectrum for Indoor Plants Veg and Flower

If you are into indoor gardening, you need to buy the Best HPS Bulbs to help you grow different plants indoors. These bulbs are designed to ensure that your plants get the required amount of light. So you don’t have to worry about the plants getting less or excess sunlight.

iPower GLLEDXA300CNEW 300W LED is a quality product to buy because it provides full spectrum. The bulb features red and blue led which provides the right amount of light to promote plant growth.

This is a high efficiency bulb that doesn’t consume more power. It consumes only 135 W as compared to other traditional bulbs that use more than 300 W. it is energy saving hence you will not incur huge electricity bills.

The good thing about buying this led bulb is that you can use it in different ways. It is perfect for hydroponics, greenhouse gardening and horticulture. The bulb provides light that is similar to the daylight which help in plant growth.

Reasons To Buy This

  • The bulb has aluminum heat sink cooling vents to it doesn’t overheat
  • The bulb has IR UV led that promote the defense mechanism of plants
  • It is high in efficiency and only consumes 135 W hence saving energy
  • Features blue and red LED which is crucial light to promote plant growth
  • The bulb is multi-purpose so you can use it in a wide range of applications
  • You will enjoy 30 days money back guarantee as well as 3 years warranty
  • Provides light that is similar to the daylight to boost the growth of indoor plants
Relassy 300W LED Grow Light Panel, Auto On/Off Timer Function, 338 LEDs Reflector 16-Band Full Spectrum Plant Light for Indoor Plants Seeding Veg and Flower Commercial Planting

You need to but the right grow lights to enable your plants to grow indoors.  If you want a light that can cover a large surface, try the Relassy 300W LED Grow Light Panel. It features auto on and off function so you can set the lighting time for 4, 8 or 12 hours.

Having this grow light provides a full spectrum which means that your plants will get full light. It features UV light to minimize plant diseases, disinfection and sterilization. Eventually, you will get a high yield.

The light features a nice design since it is thin and foldable. You will enjoy using it because it is an improvement of the traditional heavy design grow lights. Its foldable design makes it easy to carry and save more space.

If you have used grow lights that produce noise, you know how irritating they can be when working. This model has no fans which means you will get a silent operation. It doesn’t produce any noise so you can use it in your kitchen, living room or home without any issues.

Reasons To Buy This

  • One of the best higher light utilization with a focus light design
  • The light has a foldable design which makes it easy to carry and store
  • The grow light provides full spectrum to provide your plants with full light
  • Doesn’t have fans so it provides a silent operation which reduces disturbances
  • Provides you with automatic timing function so you can auto turn it on or off
  • You can install it in different ways to achieve different lighting angles for the plants
  • It is designed with blue, red, white, IR and UV light as well as high efficiency led chips
VIPARSPECTRA UL Certified Reflector Series V300 300W LED Grow Light Full Spectrum for Indoor Plants Veg and Flower

Experiencing a low yield or long period of growth for your indoor plants? It could be the plants are not getting the best lighting. Get the VIPARSPECTRA UL Certified Reflector Series and you will notice a significant increase in your yield.

This led grow light offers a full spectrum to provide your flowers and vegetables with all the stages they need for growth. It ensures that the plants get everything that they need in the natural sunlight.

It doesn’t over heat which can be damaging to your plants. This is because it is designed with advanced high speed quiet fan combined with an upgraded aluminum cooling heat sink that promote heat dissipation.

This grow light provides your plants with the required illumination without consuming too much power. It consumes only 130 W making it one of the most energy efficient grow lights.

Reasons To Buy This

  • It provides high quality and consistent all year crop production
  • Has a reflector design to increase the PAR output by 50 percent
  • The grow light has an advanced cooling system perfect for heat dissipation
  • You will enjoy 30 days money back guarantee and 3 years local after service
  • Offers a wide range of applications so it will suit all kinds of indoor horticulture
  • Has a convenient daisy chain function to allow you use multiple grow lights together
  • Provides your plants with a full spectrum to offer the plants with everything that they need
VIPARSPECTRA Dimmable Reflector Series DS300 300W LED Grow Light 12-Band Full Spectrum for Indoor Plants Veg and Flower, Has Daisy Chain Function

Grow lights give you the opportunity to grow different types of plants regardless of the season. There are many grow lights out there but this doesn’t mean that they all work well. VIPARSPECTRA is a recommended model that provides you with the required illumination for your plants.

This light provides a full spectrum so that plants can get everything they in in natural sunlight. You can use the grow light for all types of indoors plants and vegetables and it will provide a great performance.

It features a daisy chain feature so you can use more than one light together. Additionally, its advanced cooling system promotes heat dissipation so you will not experience overheating which can damage the plants.

Another great aspect of this grow light is the incredible PAR output. It features a reflector design that boosts the PAR output by 50%. It is scientifically engineered to ensure that there is balance between PAR output and the right coverage.

Reasons To Buy This

  • Offers a quality reflector design to increase the PAR output
  • It consumes only 130 watts making it effective and energy efficient
  • Has a convenient daisy chain function making it easy to use multiple lights
  • Offers plants with a full spectrum so that plants can get everything that they need
  • The grow light has an excellent cooling system is effective for easy heat dissipation
  • This grow light provides a wide range of application and it suits different types of indoor plants
  • Designed with a dimmable feature design to allow precise spectral control of the brightness
Advanced Platinum Series P300 300w 12-band LED Grow Light - DUAL VEG/FLOWER FULL SPECTRUM

If you are looking for an advanced grow light, this is the right model to think about. As compared to other grow lights, this led light provides you with the highest value of PAR/Lumen output per watt. In fact, you will get 2x-3x the intensity that is provide by other grow lights.

When buying a grow light, it is wise to consider if it provides a superior spectrum. This unit will impress you because it has superior 12 band full spectrum from UV depth to IR height. It makes it one of the best grow light that provides efficient spectral output.

Saving energy should be one of your concerns when you are dealing with grow lights. This model replaces many conventional units because it consumes only 180 watt of power while providing your plants with the light they need for optimal photosynthetic response.

You can entirely depend on this grow light right from the seedling stage, through the final flower and harvest. The light is also ideal for compact applications or using multiple coverage units.

Reasons To Buy This

  • You will enjoy a 90 day money back guarantee as well as 5 year warranty
  • The grow light consumes only 180 watts of power making it energy efficient
  • This grow light provides a maximum yield with optimal use of power and heat
  • Great led grow light that offers more intensity as compared to other grow lights
  • It is great for using with many units for even coverage or for compact applications
  • Offers a superior full spectrum making it one of the most efficient spectral you can find
  • Great grow light that provides higher yields, better efficiency and lower growing temperatures
MarsHydro LED Grow Light 300W 600W 1200W Full Spectrum for Hydroponic Indoor Plants Growing Veg and Flower

The rate at which people are growing plants indoors is increasing and this has led to production of many LED grow lights. One of the best 300 watts led grow light that you can get on the market today is the MarsHydro LED Grow Light. This unit provides a booming light to support the growth of plants.

Its full spectrum is ideal for the growth of flowers, vegetables and aquatic plants. When it comes to energy consumption, the grow light consumes only 132 watts making it energy efficient. It is large enough to cover an area of 2x2 inches.

This is a versatile grow light that you can use for plants in soil as well as hydroponics. It provides the required light to support the growth of tomatoes, potatoes, lettuce, pepper and much more.

You will not experience a hard time using grow light. You just need to plug in and turn the unit on. Each of the circuit board has a separate design so when one component gets damaged, it will not affect the performance of the whole set.

Reasons To Buy This

  • It works well for both plants in soil as well as hydroponic plants
  • Perfect for all indoor growing environment like grow room or tent
  • Carries 30 days money guarantee and 3 years authentic warranty
  • Designed with a high speed heat dissipating fan to cool down the light
  • The grow light has an easy user-friendly interface which makes it easy to use
  • Provides effective booming light to provide different plants with a full spectrum
  • The circuit board features a separate design so it will work even when one component is damaged
300w LED Grow Light, Upgraded Full Spectrum Reflector-Series Plant Lamp with Heatproof Case for Greenhouse Hydroponic Indoor Plant by Lightimetunel

Lightmetunnel is one of the leading brands in the production of led lights. This is one of their newest models that utilizes the latest technology to offer a high lumen output. This promotes the growth of plants so that you can get a high and healthy yield.

This grow light is ideal for all types of indoor plants and it supports all plant growth stages, thanks to the full spectrum layout and the 60 degree reflector design. This is one of the recommended lamps that will meet your indoor gardening needs.

If you have used different types of led grow lights, you will conquer with me when I say that some models get extremely hot and this can cause damages to the plants. To counter this problem, this grow light features a built-in fan that cools it down and ensures it is running efficiently.

Additionally, the light allows daisy chain meaning that you can use more than one lamp to work together. As a result, you will save more space and increase the efficiency.

Reasons To Buy This

  • It promotes fast growth of plants and improves the overall output
  • Features a superb heat dissipation which extends the life of the lamp
  • Has a daisy function so you can combine different lamps to work together
  • Designed with large high speed fans which provides a cooler performance
  • This led grow light is designed with a top quality 60-degree reflector and cap
  • Provides universal blue and red IR UV spectrum that plants require in the natural sunlight
  • The grow light is suitable for all types of indoor plants and it supports all stages of growth
MAXSISUN Dimmable 300W LED Grow Light 12-Band Full Spectrum Veg and Bloom Dimmers for Indoor Greenhouse Plants

There are many 300 watts led grow lights that you will find on the market today but many models do not meet the performance of the MAXSISUN Dimmable light. This unit provides plants with an efficient spectrum to support plant growth.

The light’s spectrum features a useful wavelength meaning that it can be absorbed by plants fully for photosynthesis. The full spectrum provides uniform lighting for all the growing plants making it effective for all growth stages.

You can use this light for both hydroponic plants and plants growing in the soil like potatoes, tomatoes, lettuce, and pepper among others. Additionally, the light supports any type of indoor growing environment.

In regards to power usage, the led light is energy efficient. It consumes only 132 watts so you don’t have to worry about paying huge electricity bills.

Reasons To Buy This

  • It is suitable for all indoor grow environments like grow room or tents
  • The light is safe and easy to use so you just need to plug in and turn it on
  • This led grow light is suitable for plants in soil as well as hydroponic plants
  • Provides a full spectrum for full growth of flowers, vegetables and aquatic plants
  • It doesn’t consume more power as compared to other standard indoor grow lights
  • Features an effective high heat dissipating fan that cools it down and works silently
300W LED Plant Grow Light Full Spectrum For Greenhouse and Indoor Plants Veg Flower (300W)

LED grow lights vary in terms of features, brightness, size among others. If you want a brighter led grow light, get this model which is brighter as compared to other leds. The light is suitable if you have a green house or grow plants indoors.

Featuring a 5W high power PV, high lumen and a high brightness, you can be sure that the light will support effective grow of plants. On top of that, you will enjoy a long lifespan not to mention its affordable price.

You will not experience overheating when you install this bulb because it has 2 cooling fans. Moreover, it has an incredible heat dissipation as compared to other bulbs. Even when it is working for continuous 18 hours, the bulb doesn’t generate any ultra-heat.

This led provides you with a full spectrum so it doesn’t limit you to grow plants at any growth rate. It supports different stages like germination, seedling, veg and flower.

Reasons To Buy This

  • Comes with 3 year warranty and 30 days money back guarantee
  • Has a full spectrum to support different types of plant growth stages
  • It cannot generate ultra-heat even when working for 18 hours in a day
  • As compared to other led grow lights, this one provides more brightness
  • Offers a long lifespan making it suitable for indoor and greenhouse plants
  • The grow light is designed with 2 effective cooling fan for a cool performance
VIVOSUN 300W LED Grow Light Full Spectrum for Hydroponic Indoor Plants Growing Veg and Flowering

This is another amazing indoor grow led grow light that is ideal for hydroponic plants. It provides a full spectrum to provide your plants with the required light for blooming. The bulb is also super-bright hence it will benefit the plants.

Apart from effective and efficient lighting, you also want to have a grow light that provides you with a cool and quiet operations. This is exactly how this model works because it features a built-in 5 inch large cooling fan.

Additionally, it is designed with composite metal operates at the right temperature. It also consumes 135 watts which is energy efficient. You can get a higher and healthy yield without incurring huge power bills.

When you are buying led grow lights, it is important to consider the durability of the unit. This model features a quality metal casing that dissipates heat as compared to other standard led lights. This extends its lifespan up to 100, 000 hours.

Reasons To Buy This

  • Comes with 30-days return guarantee and 3-year warranty
  • Great led grow light that provides an optimal light spectrum coverage
  • Features a large 5-inch built in fan that makes it cool and silent during operation
  • The led light can last up to 100,000 making it one of the best with a long lifespan
  • Designed with a metal casing that dissipates heat to extend the lifespan of the unit
  • Works well to support veg and flowering and provides quality and guaranteed results
  • Works well in tents and grow houses making it suitable for many indoor growing environments

How to Choose Best 300 watt Led Grow Light

There are a lot of considerations that you need to think about when buying 300 watts led grow lights. Before you make a final purchase, check out these tips to help you select the right grow light to suit your indoor garden.

Garden Size

The space you have determines the size of grow light that you should buy. For instance, if you have a small garden, then there is no need of investing 1000 Watt Led Grow Light. 300 watts led grow lights work well for small gardens. You can find the lights in different sizes to offer different coverages. It is important to compare different types of lights so that you can get a model that will cover your garden.

Type of Plant

The type of plant that you have also determine the type of bulb to buy. Most home gardens have hydroponic plants. If you have such type of plants, it is important to look for a light that is specifically designed for hydroponic plants. Depending on the type of plant you have, look for a grow light that can handle the plants so that the plants can grow well and get the required illumination.

Power Consumption

This is another important thing that you should consider when you are buying a grow light. You want a good indoor light that provide the required illumination while keeping power consumption low.

If you have a large garden, look for a light that is powerful and doesn’t consume a lot of power. Otherwise, you might end up paying huge electricity bills. As compared to other technologies, led grow lights do not consume more power and this makes them efficient.

Durability

This is a crucial factor to consider when you are buying a grow light. You want to purchase a durable and efficient grow light that can serve you for many years. Before you make your purchase, make sure that you know the longevity of the product.

Appearance

The overall look of the product speaks a lot. In as much as the product works well but it not eye-catching, it might not attract you. Look for an led grow light that attracts you so that you can get more from it.

Your Budget

How much money do you want to spend buying a grow light? I know you would like to save some money, however, you should not compromise the quality. It is advisable to compare the price of different units so that you can get the one that you can afford.

LED Lifetime

LED grow lights have different lifespan so you should check this factor before buying.  Before you buy, make sure you check the lifetime of the LED. Some models have more lifespan as compared to others.

Final Notes


We live in an era where people no longer depend on seasons to grow plants. With the best 300 watts led grow lights, you can grow the plants of your choice any time of the year. LED grow lights are common among many indoor gardeners because of their efficient lighting system. Additionally, they consume 60% less power as compared to other models. Whether you are growing flowers or cannabis, you will benefit a lot of you have led grow lights. These lights offer the illumination that is required for the plants to grow and blossom.


Finding quality led grow lights is not a simple task especially if you are a beginner. The hundreds of models on the market can make choosing the right bulb complicated. This is why we have narrowed down your search to help you pick the right product that will work for you. Our reviews and guide are aimed to help you make a wise purchase decision. After comparing the above top products, it will be easy to find what suits your needs.


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We tested these products and they are great choice for indoor growers. Not only are the above grow lights effective, provide the required illumination but they also consume less power. LED grow lights have made gardening easy because they mimic daylight.  It is important to note that you should not use LED lights when the plants need night time because it can affect the health of you plants.


I hope you will find the above reviews and guide resourceful. I have tried to cover everything important so that you can have a simple time as you choose the right grow light. You can compare the prices and select the light that suits your requirement. I would say that any of the above grow lights is a number one pick.

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William Jones
 

I launched this blog as a product reviewer and passionate blogger. Beside provide advance material, guiding you towards a better home and outdoors gears essentials reviews. I devote my maximum time creating research-based product recommended to you for an easy pick.