Spider Farmer SF-1000 Review [2021]

Spider Farmer SF-1000 is one of the most popular grow lights on the market today and is among the most positively reviewed ones too.

This LED lamp is glorified on many gardening forums and blogs by professional indoor growers. So, how well does this light actually perform?

Spider Farmer SF-1000

To learn more about Spider Farmer SF-1000, we decided to do our own investigation. We included the full results in this in-depth Spider Farmer SF-1000 review article.

Spider Farmer SF-1000 Design Review

Before we review Spider Farmer SF-1000 performance, let’s discuss its design for a minute.

The Package

Spider Farmer SF-1000 arrives well-packaged. Grow lights need great protection, and the company does a wonderful job in this regard.

When you open the package, you’ll find the grow light as well as the hanging equipment, a few plant labels, a measuring tape, and a user manual.

Structure & Design

The grow lamp is relatively heavy. It holds a good chunk of aluminum that accounts for most of its weight.

spider farmer sf 1000 review

Attached to the aluminum plate is the light panel. It has 208 LM301B LEDs that are insulated with waterproof material along with the board itself. The power cords of the device are also well insulated.

The diodes are made by Samsung, so they are among the highest quality LEDs found on the market.

The driver of the device is manufactured by MEAN WELL (an excellent brand of power supplies) and is fixed to the lamp.

Because it has no added built-in equipment, such as cooling fans, Spider Farmer SF-1000 is flat-shaped, unlike most grow lights.

Spider Farmer SF-1000 Performance Review

Spider Farmer SF-1000 has a light output of around 16500 lumens. Most of its diodes emit light in the 3000K and 5000K range of the spectrum, and the rest generate deep red and infrared light.

The above ratings shows us that the light generated by the device includes nearly the full spectrum of light. However, to assess the intensity of the generated light that is useful for photosynthesis, we need more accurate measurements other than lumens and kelvin.

We have to test the Photosynthetically Active Radiation (PAR) output of Spider Farmer SF-1000 to learn more about its usefulness to plants.

One way of assessing the PAR of a grow light is to measure its PPFD values at a particular distance (learn more about growing plants with lights).

Here are our PPFD measurements of the Spider Farmer SF-1000 at a distance of 12 inches (30 cm). This is the hanging height recommended by the manufacturer for the flowering phase of the plants.

spider farmer sf 1000 review

Those values show that Spider Farmer SF-1000 generates high intensity of useful light.

To appreciate these PPFD measurements even more, let’s use them to calculate the values of the Daily Light Integral (DLI). This is the cumulative amount of PAR reaching your plants every day.

Assuming that at an average you’ll turn on the light for 16 hours a day, then the DLI values of Spider Farmer SF-1000 at a distance of 12 inches from your plants will be as follows.

We should mention that plants with the highest demand for light can grow amazingly with a DLI of around 20 to 30 mol/m²/d.

So, long story short, you can grow anything under Spider Farmer SF-1000, including vegetables and fruits.

It is important to note that the flowering footprint of the Spider Farmer SF-1000 is 2ft × 2ft (0.6m × 0.6m). So, it’s difficult to grow heavy-flowering and fruiting plants outside that coverage area.

But, the vegetative footprint of the Spider Farmer SF-1000 is 3ft x 3ft (0.9m × 0.9m), because the plants need less intensity of light in their vegetative phase.

Power Consumption and Efficiency

Spider Farmer SF-1000 draws around 96 watts of power. This means that you will hardly notice an increase in your electric bill after running the light.

But the question is, how efficient is this device at turning watts to light energy?

The average PPFD of the light at a hanging distance of 12 inches is around 531 μmol/m²/s, so its PAR (PPF) output is close to 240 μmol/s.

That means that the PPF efficacy of Spider Farmer SF-1000 is approximately 2.45 μmol/J. This value is phenomenal when you compare it to that of other grow lamps.

For example, a popular competitor of the Spider Farmer, the VIPARSPECTRA Pro Series P1000, has a PPF efficacy of around 2.1 μmol/s/Watt.

Upgraded: ON/OFF Switch + Dimming and Daisy Chain Function

Old Spider Farmer models did not have ON/OFF switches, but the company finally upgraded their lights to include that basic feature.

The old lights had a dimming function, but the dimmer was hard to reach, because it was inside the driver.

The newest models have their dimmer knobs on the outside, so you can decrease the intensity of your light smoothly.

Finally, the newest Spider Farmer SF-1000 has a daisy chain function that allows you to connect multiple lights to each other, which gives you more control over your grow setup.

Heat Dissipation

Spider Farmer SF-1000 has no cooling fans, so how does it dissipate the heat generated by its LEDs? Here’s where the aluminum comes into play.

The aluminum’s great surface area and high thermal conductivity enable it to act as a heat sink. It collects all the heat from around the LEDs and disperses it gradually in the atmosphere away from the plants.

The aluminum heat sink has several unique advantages compared to fans.

Cooling fans need a great deal of space, produce a lot of noise, and require electric power to operate. On the contrary, an aluminum heat sink is soundless and has no need for electricity. Plus, its shape fits in perfectly with the light board.

Spider Farmer SF-1000 isn’t the only grow light that uses aluminum to remove heat. And in our opinion, this method of heat dissipation proved to be the most effective because the majority of grow lights nowadays rely on it.

Yet, many gardeners believe that the heat sink of Spider Farmer SF-1000 is not as powerful as that of other grow lights, such as Mars Hydro TS 1000.

Note: The aluminum of the Spider Farmer will get hot as soon as the device starts running. You don’t have to worry about it because that’s the heat sink doing its job.


When it comes to cannabis cultivation, yield in grams per watt is perhaps the most important measurement for the grower.

cannabis plant yield

According to the manufacturer, the maximum yield of Spider Farmer SF-1000 is around 2.5 grams/watt. We advise you not to pay much attention to that measurement because it’s irrelevant and a bit exaggerated.  

As reported by many growers, the average yield you can pull from the light is around 1.2 grams/watt, which is also very good.

Spider SF-1000D Overview

Spider Farmer released a slightly altered version of SF-1000, called SF-1000D.

This light is more affordable than SF-1000, but this advantage comes at the expense of other features.

For example, SF-1000D doesn’t use a MEAN WELL driver, which is a big downgrade.

Also, the light uses different type of Samsung diodes (LM301D) that are less efficient and bright than LM301B diodes.

The PPF efficacy of SF-1000D is around 1.9 to 2 μmol/J, around 80% of that of Spider Farmer SF-1000.

Considering its reduced price, SF-1000D is recommended for first-time and amateur growers who don’t want to spend too much money on grow lights.

Summary & Conclusion

Spider Farmer SF-1000 is a powerful grow light under which you can grow the most light-demanding plants.

One of its top features is low power consumption. The light only consumes around 96 watts with a PPF efficacy rate that stands around 2.45 μmol/s/Watt.

Spider Farmer SF-1000 puts out a mixed light that covers most of the spectrum. And its PAR output is adequate for most plants, including the heavy-flowering ones.

The device has no cooling fans and instead it uses an aluminum board to dissipate heat.

As for the design, the Spider Farmer has a simple flat shape. It’s pretty much a lighting board attached to an aluminum plate and a driver.

The LEDs and the driver are manufactured by Samsung and MEAN WELL, respectively. Both companies are two of the leading brands in the LED industry.

Spider Famer SF-1000 retails at an affordable price (you check the price here on Amazon), and taking into consideration everything we mentioned above, we highly recommend this light for any type of plant you wanna grow inside.

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I'm Jad, a biologist, blogger, and experienced indoor gardener. I am knowledgeable in plant biology, particularly in plant cultivation and propagation. I founded HerbsWithin.com in 2019 to share my knowledge in indoor gardening with passionate home growers.

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