Spider Farmer SF300 LED Grow Light Review [2023 Edition]

When choosing the most excellent grow light for your indoor plants, the task becomes quite daunting. Without this fixture, you will never get your desired yield, and all the efforts will go in vain. Hence, you cannot afford any mistakes!

Now the question is, which grow light can promise you the motherlode in every harvesting season? Well, to give you the answer, here is our Spider Farmer SF300 LED grow light review for you!

In this article, we’ll discuss its construction, output, design, light spectrums, and the benefits it will provide for your greens. So, without wasting much time, let’s get enlightened!

spider farmer sf300 led grow light

Spider Farmer SF300 LED Grow Light Review

The SF300 LED grow light is one of the best models by Spider Farmer; there is no doubt about it. And this fixture is amazingly popular among most growers for all the right reasons!

Well, it is time to tell you about the outstanding features of this grow light and how it can be beneficial for your indoor plants. Furthermore, we’ll also give you some heads-up about its shortcomings if it has any. So, let’s jump into that section, shall we?


Most grow lights you see in the market are pretty heavyweight; that’s nothing new. And if you can get any fixture that doesn’t weigh much, it will probably get damaged in six months.

But this SF300 is the crème de la crème of grow lights as it is made with heavy-duty construction, but the manufacturer has also kept it super lightweight. Isn’t that the best of both worlds?


The SF300 isn’t a bulky fixture; it comes with a compact, ergonomic design. As a result, the installation process will be effortless, and you won’t need anyone to give you a hand.

Now let’s talk about the fantastic LEDs it has. This grows light uses OSRAM diodes, and they produce a small amount of heat. In this way, the durability of your fixture is extraordinarily long, and your grow area won’t be overheated.

On top of everything, it is made with a solid light reflector to prevent light loss and ensure higher light reflectivity. And that’s more than you can ask from any grow light, don’t you think?

However, the only dissatisfying thing about this fixture is that it doesn’t have any fans for heat dissipation. But as the diodes don’t produce much heat, you can totally ignore thing fact. Moreover, this fanless design also makes it super quiet, so it’s a blessing in disguise!

Light Spectrum

Sometimes even the most expensive grow light fails to provide the needed spectrum for your plants. In that case, your effort will mean nothing, as the plants won’t be receiving any nourishment!

But the SF300 offers a sunlike full-spectrum for your precious greens. Yes, it comes with a combination of red, blue, warm white, and IR, so your plants can thrive without any trouble.

This fixture uses smaller diodes to enlighten your grow area, and the 120-degree beam angle ensures that every corner is getting the perfect amount of light. And you can use this LED panel for different growth stages, which makes this thing more user-friendly than it already is!

Thanks to the 2800K-3000K warm white light, your greens will get a significant boost during the blooming stage, and the flowers will be more vibrant than ever. The light also provides 660-665nm red and 4800-5000K blue spectrums to increase the growth rate and yield. What else do we need?

On top of everything, you will also be getting IR to speed up the phytochrome conversion. So, if you want to hit the jackpot during harvesting, this SF300 grow light will be your greatest help!

Coverage and Output

This energy-efficient fixture is made to provide high-light output. It is made with OSRAM diodes with 192 LEDs. And this grow light offers 5000 lumens output which is admirable!

Besides providing this incredible output, it only devours 32 watts. Therefore, now you can enjoy the highest amount yield but won’t have to burn a hole in your pocket to pay the electricity bills. Isn’t that mind-blowing?

And when it comes to coverage, it can wrap up a 2’ x 2.5’ grow area without any trouble. However, if you want to cover a bigger area, you can install multiple fixtures. But make sure your tent or grow room is capable of handling the heat.


There’s always a complaint that grow lights don’t last for too long! But if you pick the SF300, you won’t have to face that kind of issue!

The LEDs of this fixture come with anti-vulcanization and anti-moisture coating. Hence, these diodes can survive up to 50,000 hours without giving any trouble. This exceptionally long durability is undoubtedly worthy of your money!

So, Is SF300 Grow Light Worth It?

The SF300 is amazingly energy-efficient, offers higher output, produces minimum heat, will last for an exceptionally long time. So, if you ask for our opinion, we would totally recommend you to go for this.

In addition, all the fixtures by Spider Farmer come within a reasonable price range. Hence, most growers won’t have any affordability issues with it. Considering all its features and benefits, you should give this one a try to enjoy a successful yield in every season!

Frequently Asked Questions (FAQ)

1. Is Spider Farmer a good brand?

When it is about quality grow lights, Spider Farmer is one of the big guns out there. They also manufacture grow tents, filters, and plenty of other accessories that are the crowd’s favorites!

The Spider farmer grow lights have hardwearing construction, energy-efficient design, and a powerful light spectrum for a successful yield! So yes, the Spider Farmer will be an ideal choice if you are looking for the best fixture for your grow area!

2. Is SF300 more efficient than fluorescent lights?

The PPE of the SF300 LED grow light is 2.3 umol/J, which is twice more efficient as the fluorescent lights. Therefore, if you want to save electricity bills, go for the SF300 without any second thoughts!

3. Can I use SF300 for the germination stage?

Yes, besides the Veg, you can use this grow light for the Germination stage of your plants.

4. Is this grow light suitable for a 2’x4’ grow area?

The ideal coverage of this grow light is 2’x2.5’. However, you can use a fixture for a 2’x4’ grow area for the seeding stage without any issue.

The Bottom Line

Finally, we are at the end of our Spider Farmer SF300 LED grow light review. After weeks of hard work and intensive research, we prepared this; there isn’t any other information you can find out there that we haven’t given you already! The Spider Farmer is a well-reputed brand, and their grow lights are user-friendly, super-efficient, and kinder on your pocket! Therefore, when looking for an optimal experience, going for their product will be the best idea; we’re positive about that!