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Spider Farmer SF4000 LED Grow Lights 4x4, with Samsung LM301B Diodes, Deeper Penetration and Dimmable, 450W Full-Spectrum Commercial Plant Lamps for Veg BloomIndoor Growing in Grow Tent & Rooms

4.7 4.7 out of 5 stars 6,714 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Plant Growing Lamps by Spider Farmer

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4x4

Purchase options and add-ons

Brand Spider Farmer
Color White
Material Aluminum
Style Modern
Product Dimensions 25.39"L x 21.1"W x 2.32"H

About this item

  • LOWER RUNNING COSTS & HIGHER-QUALITY YIELDS: SPIDER FARMER LED Grow Lights utilize the latest in high yielding LEDs technology today-Samsung LM301B diodes, high Energy Efficiency with 2.7 umol/J, delivers a powerful light output and uniform canopy penetration to resulting maximum higher yields. It only consumes 450W, running 50% less power than the HPS or other SMD LEDs or Blurple lamps. Veg coverage is 5 x 5 ft, Flowering coverage is 4 x4 ft.
  • NEW DIODE LAYOUT & DIMMING DESIGN: SF4000 growing lights. More light beads at the edges, fewer in the middle. Helping get more uniform PPFD. Plants absorb light better & product higher yields. Dimming knob is adjusted the light intensity at liberty. Multi-light Connection with unified dimming is especially beneficial for large indoor growing and commercial planting areas.
  • IDEAL FOR ALL GROWTH STAGES: Excellent full spectrum- white, blue, red and IR (3000K, 5000K, 660nm and IR 760nm). 3000K diodes provide more reddish light and the 5000K provides more blueish. The 660nm red and IR light is especially useful during bloom when it speeds up flowering time and boosts yields. Turn your seeds into your own supply. And the light looks fairly natural, so it's good for accurately monitoring plant health.
  • WELL MADE & SOLID CONSTRUCTION: No Fan Noise. High Safety performance brand driver, Fair Waterproofing. Update aluminum material is thick and sturdy, doesn't put out a tremendous amount of heat, has high-quality protective covers for cables; User-Friendly Packaging. Quality components mean the light lasts longer, but they also save you money.
  • VALUE FOR THE MONEY: SPIDER FARMER LED Plant Lights are often copied but will never have our quality or commitment, we provide 5 years of after-service at a local maintenance center(US/CA/UK/EU/AU). Make sure you purchase authentic Spider Farmer grow lights, really can give you high-quality grow lights – at a price that is affordable. For any questions, feel free to e-mail us, and we will help you resolve them. Quality backed by our ironclad!!!

Customer ratings by feature

Brightness
4.7 4.7
Sturdiness
4.7 4.7
Easy to use
4.6 4.6
Energy efficiency
4.6 4.6

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$399.99
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$69.99
Get it as soon as Tuesday, Apr 2
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Product Description

LED grow lights
LED grow lights
Model SF4000
Input Power 450W
Max Yield 2.5g/watt
Energy efficiency (PAR/Watt) 2.7 umol/J
Lifespan 55000H
Air temperature -20-35℃
Light Size 648*536*50MM/25.51*21.1*1.96INCH
Light Weight 6.58KG/14.5lb
Input Voltage AC100-277V
Frequency 50/60HZ
Humidity ≤80%
Amp 1.64A@AC120V 0.82A@AC240V 0.75A@AC277V

More Choice

Clip Fan

Grow Tent Clip Fan 6”

led grow lights

SF7000 Grow Light

SF2000

SF2000 Grow Light

SF1000

SF1000 Grow Light

humidifier

6L Grow Tent Humidifier

4x4x6.6 Grow Tent

4x4x6.6 Grow Tent

6Inch Duct Fan Kit

6Inch Duct Fan Kit

Customer Reviews
4.4 out of 5 stars
120
4.7 out of 5 stars
6,714
4.7 out of 5 stars
6,714
4.7 out of 5 stars
5,102
4.0 out of 5 stars
41
4.6 out of 5 stars
1,406
4.2 out of 5 stars
80
Diodes
/ Samsung LM301B Diodes Samsung LM301B Diodes Samsung LM301B Diodes / / /
Input Power
/ 650W 200W 100W / / /
Coverage
/ 5'x5'/6'x6' 2'x4'/3'x4' 2'x2'/3'x3' / / /
Efficency
/ 2.8 umol/J 2.7 umol/J 2.5 umol/J / / /
Recommend Fan Size
/ 6 Inch Inline Fan Combo 4 Inch Inline Fan Combo 4 Inch Inline Fan Combo / / /
Recommend Tent Size
All tents 5’ x 5’ tent 2’ x 4’ tent 2’ x2’ tent / / /

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

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Spider Farmer SF4000 LED Grow Lights 4x4, with Samsung LM301B Diodes, Deeper Penetration and Dimmable, 450W Full-Spectrum Commercial Plant Lamps for Veg BloomIndoor Growing in Grow Tent & Rooms


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Spider Farmer SF4000 LED Grow Lights 4x4, with Samsung LM301B Diodes, Deeper Penetration and Dimmable, 450W Full-Spectrum Commercial Plant Lamps for Veg BloomIndoor Growing in Grow Tent & Rooms
Spider Farmer SF4000 LED Grow Lights 4x4, with Samsung LM301B Diodes, Deeper Penetration and Dimmable, 450W Full-Spectrum Commercial Plant Lamps for Veg BloomIndoor Growing in Grow Tent & Rooms
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Price-13% $399.99
List:$459.99
$119.99$619.99$79.99$469.99-7% $399.99
Typical:$429.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Wednesday, Apr 3
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Brightness
4.7
4.4
4.7
4.6
4.7
4.6
Energy efficiency
4.6
4.5
4.6
3.6
4.5
4.5
Value for money
4.5
3.9
4.5
4.5
4.6
4.2
Heat output
4.1
4.6
4.1
4.4
3.7
Timer function
2.9
3.7
3.6
5.0
Sold By
SPIDER FARMER
SPIDER FARMER
SPIDER FARMER
BESTVA STORE
VIPARSPECTRA
SPIDER FARMER
material
Aluminum
Aluminum
Aluminum
Aluminum
Aluminum
Aluminum
light source type
LED
LED
LED
LED
LED
LED
light sources
1
600
4
1
1260
power source
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
Corded Electric
shade material
Aluminum
Aluminum
Aluminum
Aluminum
style
Modern
Modern
Modern
Modern
Modern
Modern

Customer reviews

4.7 out of 5 stars
4.7 out of 5
6,714 global ratings

Customers say

Customers like the health, performance, brightness, and value of the light fixture. For example, they mention that it really brings out the plants, it's easy to setup and install, and the results are fantastic. Opinions are mixed on quality, temperature, and dimming switch.

AI-generated from the text of customer reviews

659 customers mention612 positive47 negative

Customers are satisfied with the brightness of the light fixture. They mention that it is a great light, powerful, and the light for top notch grows. The light distribution is pretty even, and with the dimmer switch, they can grow very low light needing plants. The price is affordable and it offers a whopping 450w of LED lighting across the canopy. Overall, customers are happy with their purchase and recommend it to others.

"...Not to mention, these lights are POWERFUL. To the extent, you have to be sure not to blast your plants with TOO much lights...." Read more

"...a superhero for your plants, with its killer spectrum and crazy-efficient light output...." Read more

"...This would be excellent for low-light or vege plants. For mature, high-light vege / bloom plantings: 43" x 28" at a distance of 24”...." Read more

"This light is such an amazing light would buy again" Read more

261 customers mention207 positive54 negative

Customers like the performance of the light fixture. They say it's amazing when functioning properly, produces fantastic results, and runs great. They also appreciate the Samsung diodes, which have a high efficacy rating of 2.7 umol/J. Overall, customers are happy with the quality and performance of this product.

"...surely raise my rating to 5 stars, as these lights are amazing when functioning properly...." Read more

"...And the Samsung diodes offer a high efficacy rating of 2.7 umol/J. I like the blend of LED colors...." Read more

"Works great but it's advertised as 3.14 but the light says 2.7" Read more

"Worked fantastic the first year. The second year the light intensity adjustment began failing...." Read more

245 customers mention203 positive42 negative

Customers like the value of the light fixture. They mention that it's the best value for the buck, it'll save them a lot of money on the electric bill, and it'd be well worth it.

"...The brightness and spectrum are amazing and well worth the price imo...." Read more

"...That's when I found the Spiderfarm4000.The light was affordable and offered a whopping 450w of LED lighting across my canopy...." Read more

"...the price is worth it ten fold, as you can't cut corners in the lighting department, and also when I finally experienced an issue I needed..." Read more

"...the old model and was wanting to upgrade this definitely did it worth every penny" Read more

94 customers mention92 positive2 negative

Customers find the light fixture easy to assemble. They mention that it shines brightly, has an easy-to-use dimmer, and no special tools are required. Some say that the performance is far superior to any other brand and the logical way to set lights up is easy to maintain.

"...No special tools required or anything to that effect.That said, I've added a star to my previous rating...." Read more

"...The light has a simple, polished design. No need to assemble. The aluminum board is thick and sturdy...." Read more

"...The light was simple to set up, perfect shape for the area I needed to to cover and just the right size...." Read more

"...But it is the logical way to set lights up, with drivers on outside of tent and your carbon filter vent air outside tent and on to the driver's to..." Read more

91 customers mention85 positive6 negative

Customers are satisfied with the health of their plants after using the light fixture. They mention that their plants are growing excellent, happy, and productive. They also say that the light did wonders for their plants and has vigorous growth. Customers also mention that the product immediately woke their plants up.

"...Quick responses, helpful advice, and they even threw in some detailed installation guides to make sure I got everything set up right...." Read more

"Works exactly how I would expect from spider farmer, perfect! Plants are super happy and growing fast!" Read more

"This light is excellent for cacti. It is great for seedlings as well as full grown specimens...." Read more

"...Bought it in May 2021 and it did wonders for my plants. Would love a bigger light in the future!..." Read more

303 customers mention197 positive106 negative

Customers are mixed about the quality of the light fixture. Some mention that it's very well made, durable, and reliable. However, others say that they received a second light with quality issues and that the light flickered sporadically.

"...No need to assemble. The aluminum board is thick and sturdy. It gets hot to the touch, but its much cooler than other techs...." Read more

"...The light will flicker if it is used...." Read more

"...It comes with adjustable hangers that are simple to use and are made very durable...." Read more

"Update: I added couple photos for reference. The grow lights have held up well and I have gotten good yields twice now...." Read more

245 customers mention154 positive91 negative

Customers are mixed about the temperature of the light fixture. Some mention that it runs cooler, uses less electricity, and the plants love it. Others say that it is very very hot.

"...They produce very little heat, and the energy they consume are almost undetectable...." Read more

"...The driver's are mounted to the led plate and it runs very very hot. Will raise temps in your tent but could also diminish life of the unit...." Read more

"...No need to assemble. The aluminum board is thick and sturdy. It gets hot to the touch, but its much cooler than other techs...." Read more

"...stronger though the entire spectrum,plus totally silent , some heat but no real problem,no more air mover drawing air through lites for cooling,its..." Read more

144 customers mention97 positive47 negative

Customers are mixed about the dimming switch. Some mention the feature is awesome, while others say they had an issue with the dimmer switch. They also say the light intensity adjustment began failing and it's hard to get to the Dimmer.

"...the new improvements such as the external dimmer dial, and daisy chainable dimmer control so 1 dimmer can run multiple units is a great feature for..." Read more

"...I have the lights mounted to be adjustable and with the variable control light intensity I can provide any type and volume of light I need for any..." Read more

"...Both of my lights still work on full power, but now I have no way to dim them and will have to purchase another light for my lower power needs...." Read more

"...Lots less heat, (But they do put off some heat.) The dimming knob is great for seedlings! All in all I am very happy with these lights...." Read more

Well made , can run hot, read on!
5 Stars
Well made , can run hot, read on!
Update: I added couple photos for reference. The grow lights have held up well and I have gotten good yields twice now.Original:I have been running my own led grow lights for past few grows but I wanted expand to a 8x8 tent and decided to buy instead of build more. Picked up the Spider 4000 and then decided to buy another one. You will get varying comments on coverage but my personal take is you need 3 - 4 of these for 8x8 full coverage. PAR measurements drop a good bit at edges and they are not that big to begin with. I expect in flower when they are at top of tent coverage is better but not in vegetation stages where they are 2 feet away from plants so keep that in mind. Their spectrum is better than the diodes I use and mixed so hoping to get some better colors in my leaves and flowers. So far the plants I have growing are soaking in the light and look very healthy. Looking forward to flowering. Also one of the reasons you should get these lights in smaller sets is because it is easier to move them around and they can be at different heights depending on your plants needs so that is a pro. A con however is the heat. The driver's are mounted to the led plate and it runs very very hot. Will raise temps in your tent but could also diminish life of the unit. So you will need to get a small fan and dedicate it blowing on the driver 24x7. Alternative is to remove the driver and put outside the tent. But that requires rewiring and most folks are not comfortable doing that. But it is the logical way to set lights up, with drivers on outside of tent and your carbon filter vent air outside tent and on to the driver's to keep them cool. Any case small fan will help. All in all they look great and I will look to post some photos to this review once things hit flowering. Costly but going cheap in this space and you will get burned with fake diodes and cheap drivers. You will get exactly what you pay for. Good luck growers!
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Top reviews from the United States

Reviewed in the United States on September 29, 2021
13 people found this helpful
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Reviewed in the United States on February 17, 2024
One person found this helpful
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Reviewed in the United States on October 5, 2019
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5.0 out of 5 stars SF-2000 More Photons per Watt vs Older LEDs!!!
Reviewed in the United States on October 5, 2019
I own both models: SF1000 and SF2000. The light has a simple, polished design. No need to assemble. The aluminum board is thick and sturdy. It gets hot to the touch, but its much cooler than other techs. Rubbery coating reduces risk from splashes. The driver is solidly fixed in place, resulting in a solid unit.

No power is wasted on fans or inefficient drivers. And the Samsung diodes offer a high efficacy rating of 2.7 umol/J. I like the blend of LED colors. Some quantum boards only have a single color for all diodes. Compared to them, this LED has a more complete spectrum.

USAGE:
The rectangular shape produces a different light distribution pattern. I estimate the light will evenly cover a 48" x 34" area at a distance of 27”. This would be excellent for low-light or vege plants. For mature, high-light vege / bloom plantings: 43" x 28" at a distance of 24”. For very high-light BLOOM / BUD (medicinal) end stage growth: 36" x 20" at a distance of 18”. See my PPFD chart for the numbers. And see my YT video for more measurements!

The 202w SF2000 could replace a 400w HID. Magnetic vs electronic ballasts vs doubled ended HPS systems all have different rates of efficiency. So it depends on the type of HID and its specs. I've recently compared this light to a brand name Quantum Board by HLG. Two of these SF-2000s would produce almost the same amount of light for HUNDREDS of dollars less. Or you could even buy THREE of these for that much money and your light output would greatly exceed the HLG unit.

DIMMING: There's confusion about the dimming options for this light. Some sources claim the SF2000 cannot be dimmed. It has a 240 watt driver that is already underdriven from the factory. Well, I was able to dim mine with no apparent issues. I took it all the way down to 50 watts. And then I decided to lock it in at 75 watts to vastly outperform a 4 bulb, 2 foot T5 fluorescent system. You MUST have a wattage meter to do this. And you should NOT raise the wattage above factory settings!

This light is a huge a step above DIY set ups. The Spider Farmer LEDs are better than many other quantum LEDs sold on Amazon. Three year warranty sounds great. Seller includes contact info to get in touch as needed. But hopefully I won't need to!

CONS:
Because there's no external switch, the dimming option is not convenient for frequent on-the-fly changes.
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293 people found this helpful
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Reviewed in the United States on March 8, 2024
Reviewed in the United States on October 7, 2023
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5.0 out of 5 stars Simply the best "Spiderfarm LED lighting".
Reviewed in the United States on October 7, 2023
After realizing I needed more lighting for my grow space, I looked up the best lighting options for a 5x5 area. That's when I found the Spiderfarm4000.

The light was affordable and offered a whopping 450w of LED lighting across my canopy. The light was simple to set up, perfect shape for the area I needed to to cover and just the right size.
It comes with adjustable hangers that are simple to use and are made very durable.

I would strongly suggest anyone looking for a new LED light with a lot of power to buy this product.
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3 people found this helpful
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Reviewed in the United States on February 6, 2024
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4.0 out of 5 stars Great light
Reviewed in the United States on February 6, 2024
Works great but it's advertised as 3.14 but the light says 2.7
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2 people found this helpful
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Top reviews from other countries

Newfie73
5.0 out of 5 stars Awesome light
Reviewed in Canada on September 18, 2023
Rach
5.0 out of 5 stars Excellent packaging and quality
Reviewed in Australia on April 30, 2021
One person found this helpful
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PN
5.0 out of 5 stars Better than more expensive lights, best value for money LED on the market.
Reviewed in Australia on May 3, 2021
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PN
5.0 out of 5 stars Better than more expensive lights, best value for money LED on the market.
Reviewed in Australia on May 3, 2021
Absolutely great product. Quality Meanwell drivers coupled with Samsung diodes. Can move the drivers out of the tent if you wanted to to reduce heat. Quality buildand construction is great, is obvious as soon as you open the packaging. The best light for this price point, after all my research I'm really glad I chose this over a more expensive light. I thought I was only buying what I could afford, but I was actually buying something that out performed more expensive lights, as I've personally seen the difference between mine and a friend that spent double the money, with mine out performing it. This is my own personal experience.
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James Russ
5.0 out of 5 stars super fast delivery
Reviewed in Australia on April 24, 2023
Preston
5.0 out of 5 stars Great light for plants!
Reviewed in Australia on September 12, 2021
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Preston
5.0 out of 5 stars Great light for plants!
Reviewed in Australia on September 12, 2021
The dimmer is a great feature, I'm running on 40 percent so there is so much room if I need more or less light! Covers a decent amount of area, absolutely zero noise, and very easy to use! Super happy with this!

Important to note that it is extremely bright, and hurts to directly look at even on only 40 percent, so be mindful where you plan to put this!
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One person found this helpful
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