Viparspectra V300 300W LED Grow Light (2024): Complete Review, Guide & FAQs

Last Updated on December, 2023 by Rob Wilson

When it comes to using LED grow lights to grow marijuana plants, there are a number of growers who trust the Viparspectra brand. The company has been making some of the best grow lights for growing weed for quite some time now, and the Viparspectra V300 300W LED grow light is among the best options that they provide. There are a number of benefits and features of this grow light which we shall be looking at in detail over the course of this article. Chances are that if you are reading this web page, you are here because you wanted to do a little bit of research on a grow light before you decided to buy it! By the time you reach the end, you shall get a detailed idea about everything that you need to know about this grow light and then make an informed purchase!

However, before we proceed with the details of the Viparspectra V300 LED grow light, we shall be taking a generic look at what grow lights are and why should you use them. We shall then look at some benefits of grow lights on marijuana plants, followed by a quick look at Viparspectra, the brand. Post that, we will be taking an in-depth look at the V300 LED grow light covering various features in detail, followed by the pros and cons of using this light to grow marjuana indoors. Some frequently asked questions about the light are also answered below, just before the concluding remarks. Here we go:

What are Grow Lights and Why Do You Need Them?

When your marijuana plant is growing outdoors under the open skies, the biggest advantage that it gets is an unfiltered access to the natural light of the sun. However, when you grow indoors, you are completely blocking access to sunlight. Sunlight is essential for the growth of a marijuana plant because of numerous reasons. Firstly, it is with the help of the sunlight that the plants grow as it helps release enzymes and pigments which make the plants greener as well as taller. Then, the process of photosynthesis via which plants convert light into energy is also made possible thanks to sunlight! Hence, plants need light in order to grow properly. When you are growing your weed indoors, sunlight is replaced by grow lights.

Not just does it help the plants grow taller and stronger, the amount of light that the plant receives also determines multiple other things such as when the flowering stage begins and when the growth stage ends. Hence, when you are growing your weed indoors, you can actually get to control the amount of light that your plants are getting and you can tweak it based on the needs of your plant. Grow lights also help providing a certain amount of heat to the plants inside the grow tent. There are a number of different types of LED grow lights, but making use of a full-spectrum LED grow light such as Viparspectra V300 is the best option that you have! Let us now take a closer look at the brand and then at the detailed product review.

Understanding Brand Viparspectra

Viparspectra is a company which is known for making good quality grow lights. The company has a large number of options for growers growing different kinds of plants and for those growing in different kinds of setups. The brand has a largely positive image in the markets and millions of growers all over the world are using Viparspectra’s LED grow lights to grow their marijuana. Apart from grow lights, the company also manufactures other types of lights such as aquarium lighting, etc. In addition to making grow lights, Viparspectra also manufactures grow tents and grow bags. The company’s products aren’t too expensive and are long-lasting as well.

Viparspectra V300 300W LED Grow Light Review: The Best Grow Light?

With a price point of less than $70, the 300 Watt Viparspectra V300 is one of the best LED grow lights for growing marijuana indoors that you can find in the markets. This is a grow light which is best suited for growers who aren’t really growing in a large-scale setup, but are in need of a decent grow light. Furthermore, this is quite affordable and a great option for pro-growers as well as beginners alike. Here’s a detailed look at all the features of this grow light that you must know about!

1. Design and Durability

In terms of design and durability Viparspectra normally has a very good reputation and this grow light too is quite a brilliant product! The panel of light that you get is divided into two chambers where you get 30 LED lights in each chamber. This grow light measures 12.8x8x2.8 inches and weighs 6.4 lbs, which is as good as it gets for the price point you are getting it at! While there’s nothing that stands out about this device, this device isn’t really meant to stand out, but to blend in. It is a simple-looking but high-performing equipment which is pretty durable as well. 

Behind this grow light panel, you would find a single switch which can turn the lights on or off. There is also a vent for the fan located on the back of this grow light. On the sides, too, you can find slits and openings via which the heat can escape from. Towards the front, there’s a glass panel which ensures that the lights remain safe and protected but the glass panel has some small openings in it that help ensure heat does not accumulate inside and damage the LEDs. Another important thing about the VIparspectra V300 300W LED Grow Light is that it supports daisy chaining – meaning you can plug one device on to another and form a chain of interconnected devices with only one of them plugged on to the main power source. Of late, many grow lights seem to be lacking this but this one has it!

2. Spectrum and Light Details

Another thing which makes the Viparspectra V300 one of the best LED grow lights is the fact that it is a full-spectrum LED grow light. This means that the combination of lights that comes from the panel is great for plants at all the stages of their life cycle and you do not have to switch the lights as the phases change. The grow light provides a 12-band full spectrum lighting experience that can be made use during the growth stage as well as the blooming stage. One disappointment with regards to this is the fact that this grow light does not have a switch to change between growth and bloom and you get the same standard lighting during both the phases, which is a mix of the reds as well as the blues. This light comes from a total of 60 LED bulbs, with 30 of them in each section of the grow light. 

3. Brand Value and Credibility

In terms of brand value and credibility, Viparspectra has a very good track record. While you are bound to find the occasional bad review and a couple of salty users ranting about it, millions of people across the world are using grow lights manufactured by the company and have been extremely satisfied by what they are getting. This is one of the best LED grow lights for growing marijuana and helps ensure that the growers are getting bigger plants with higher yields. It has been around the markets for over 10 years and continues to grow strong!

4. Coverage Offered

This grow light from Viparspectra is ideal for growers who want to grow in a small and limited setup and aren’t growing a large number of plants. Most growers prefer growing using more than just one of these grow light panels. A single grow light panel here covers an area of 2ft by 2ft when hung from a height of 24 inches and covers an area of 1.5ft by 1.5ft when you hang it from a height of 18 inches. The former is the height suitable for the growth stage while the latter is better suited for the flowering stage. 

5. Power Performance 

When you look at the power performance of the Viparspectra V300, you are bound to feel that this is one of the best options you have in the markets today! This grow light has a total of 60 LED bulbs which provide an output of 5W each providing a total wattage of 300W. However, when you look at the actual power that this grow light consumes (the power draw from the socket), it stands in at around 135W (+/- 10%). Even the LED lights here are of pretty high quality, as they are manufactured by Epiled and Bridgelux, among some of the best names in the markets these days! 

6. PAR Values

When you look at the PAR values of this LED grow light, you would be really impressed as the Viparspectra V300 actually punches way above its weight! Among the growers community, it is common knowledge that having just the right spectrum isn’t really the be-all and end-all of growing plants – you also need to have a good PAR value. The PAR value helps you understand exactly how much of the light is getting absorbed by the plant and the simplest way to read it is – the higher the better! When you hang this grow light from a distance of 18 inches, the PAR score is 412 uMols and when you move it up to 24 inches, it reduces to 237 uMol. Nevertheless, it is great for growing marijuana plants

7. Cooling

Growers need to know that while the grow lights produce a lot of light, they also generate some amount of heat. While LED grow lights generate significantly lesser heat compared to older forms of lighting, even LED lights to require to be cooled. The grow light has a fan placed on the back and has multiple heat vents on the sides which allow for a proper dissipation mechanism. In addition to this, the Viparspectra V300 LED grow light also features tiny openings on the front panel, which is made of glass so that any heat that gathers over there can also move out and not end up causing damage to the system! 

8. Warranty, Cost and Delivery

Viparspectra’s products usually tend to have a good warranty period and this grow light is no exception. The Viparspectra V300 LED grow light comes with a warranty period of three years as well as a very good customer care support and a 30-day money-back guarantee. The cost of the product is under $70, which is quite affordable and even first-time buyers won’t really hesitate buying it! The delivery by Amazon, as always, is quick and efficient.

Pros and Cons of Viparspectra V300 300W LED Grow Light


  • Supports daisy chaining
  • Easy to set up and use, even for first-time users
  • Full-spectrum lighting
  • Uses high-quality LEDs and is very bright
  • Long warranty period
  • Durable – can last for about 100,000 hours


  • Some growers have wished they had more than one fan
  • The lack of a Grow/Bloom switch

One Final Look at Viparspectra V300 LED Grow Light

The V300 LED grow light from Viparspectra is everything that a grower could ask for! It provides them with just the right and bright kind of lighting experience that will help the marijuana plants grow better and faster in an indoors environment. It is lightweight as well as durable and offers a full-spectrum experience too. Growers can make use of this grow light without having to worry about heat accumulating in the body and it also supports daisy chaining, which is another plus point for growers. The brand value and credibility of Viparspectra also add on to the charm of the product. Simply put, this is one of the best LED grow lights that you can get in the markets right now and you should buy it without any hesitations!

Frequently Asked Questions about Viparspectra V300 300W LED Grow Light

Here are the answers to some of the most frequently asked questions about this LED grow light from Viparspectra.

1. How long will this grow light last me?

The manufacturer claims that these LED grow lights can last you for almost 100,000 hours! This is almost 11 years of continuous usage! While this might be an approximate figure based on how durable these lights are – you can rest assured that you can use them without any worries for a really long time! Even if there are a few hiccups that you face while using them, you can always rely on the warranty that the company offers in order to get it repaired.

2. Is it legal to use grow lights?

Yes, it is completely legal to use grow lights as they allow you to grow any plant indoors and not specifically weed. You need to check what the laws governing growing marijuana are in your local area as growing weed is what might be illegal but using a grow light is perfectly legal for you might be using that for simpler purposes such as growing lettuce or tomatoes indoors! 

3. Which is the best type of grow light?

LED grow lights are currently considered to be the best type of grow lights because of a number of reasons. However, the biggest such reason is that they give you the most value for money when you use them over a long term. Since they offer a high wattage output while consuming low power from the socket. Another benefit is that of having a full-spectrum light as you would not need to change it between the growth and bloom phases. These lights also do not use any toxic elements such as mercury which some lights use. Lastly, LED lights also have a much higher lifespan compared to traditional forms of grow lights. Hence LED grow lights such as the Viparspectra V300 are considered to be the best grow lights for growing marijuana! 

4. What are the warranty details of this LED grow light?

There’s a three-year warranty cover on the Viparspectra V300 LED grow light, which is the standard amount of time you would get on any grow light. The company is known to honor the warranty and repair or replace your lights on time. In addition to this, Amazon also offers a 30-day return policy where you can return your product if you are not happy with the performance in the first 30 days of purchasing it. 



To conclude, Viparspectra is one of the best brands that there is in the markets and the V300 is one of the best options that you have for growing marijuana indoors. We hope that this detailed review helps you gain a much better understanding of the grow light than you had before this. Do let us know in the comments below if you have any questions about this grow light or if you feel that we have missed out on some aspect of the light! 

Happy Growing! 🙂


  • Rob Wilson

    Rob Wilson is a maverick horticulturist and alchemist of the herbal world. With an uncanny green thumb and a passion for unlocking the secrets of cannabis cultivation and processing, he blends science and artistry to orchestrate nature's most intricate symphony. Rob's journey is an odyssey of coaxing delicate trichomes and potent terpenes into harmonious existence. When not lost in his garden, he's a devoted educator, guiding fellow enthusiasts through the verdant realms of cannabis cultivation.