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FARMLITE

FARMLITE LED Grow Lights for Indoor Plants Full Spectrum Growing Light Bar Plant Hanging Growing Lamps Seedling Daisy Chain Dimmable Board 4x4ft Coverage (240watts)

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jul 26
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Size: 240watts


Features

  • Daisy-Chain DimmingThis grow light for indoor plant has a dimming button to adjust the light intensity required for different plant growth stages.The daisy-chain function allows you to connect up to 100+LED grow lamps and can be dimmed simultaneously.
  • Efficient Heat Dissipation and No NoiseOur grow lights are made of lightweight aluminum bars, which has efficient heat dissipation and cooling functions.it's powerful heat dissipation ability that no need to buy more cooling devices.This led plant light has no fan, there will be no noise.
  • 0-10V Control & EXTERNAL/MASTER/SLAVEthe grow light can be dimmed manually or by external 0-10v controller, 0-100% dimming function to meet the needs of plant growth.Master/Slave modes make setting on first light and control all grow lamps in greenhouse.Highly recommended for use in grow rooms, home growing.
  • IP65 Waterproof and Full SpectrumThe aluminium led grow lights full spectrum is waterproof and the light beads have undergone a spray-gluing process. so you don't have to worry about getting watered.

Description

FARMLITE's factory has 10 years of experience in manufacturing grow lamps. FARMLITE Industrial Park | 100,000 ㎡ Our factory was established in 2012 and has 10 years of experience in lamp manufacturing. In 2015, the production line was expanded to produce not only plant lamps but also aquarium lamps and red light therapy lamps for home health,ect. Contributed to sales income exceed 19M USD. FARMLITE Production Workshop| 16000 ㎡ 2020 set up new production workshop Expanded the capacity of indoor plant lighting & home lighting.Our corporate philosophy is Technological Innovation,Customer First FARMLITE 420Watts grow light FARMLITE 680Watts grow light FARMLITE 240W supplement light size 37.4*37.4*2inch size 43.3* 43.3*2inch size 23*2.7*1.1inch product weight 5kg product weight 8.8kg product weight 3kg number of beads 1580pcs number of beads 2370pcs number of beads 1056pcs PPF Efficacy 2.8umol/J PPF Efficacy 2.95umol/J PPF Efficacy 2.8umol/J Coverage 4x4ft Coverage 4x4ft Coverage 4x4ft Will this grow light cover a 4x2ft tent? sure,The size of our grow light is 23inchx23inch Can the power supply be disassembled and placed outside the tent? yeah! it need a power extension cable. Would this led grow fit a 3ft×3ft tent and work well? sure,The size of our grow light is 23inchx23inch

Color: Black


Shape: Rectangular


Material: Aluminum


Finish Type: Powder Coated


Light Source Type: LED


Light Source Type: LED


Power Source: Corded Electric


Light Source Wattage: 240 Watts


Mounting Type: Hanging


Light Source Special Features: Dimmable, Daisy-Chain Connectivity


Number of Light Sources: 1054


Batteries are Included: No


Wattage: 240 watts


Smart Home Compatibility: Not Smart Home Compatible


Item Weight: 3 Kilograms


Item Dimensions L x W x H: 23"L x 23"W x 2"H


Color: Black


Shape: Rectangular


Finish Types: Powder Coated


Style Name: Industrial


Material Type: Aluminum


Shade Material: Aluminum


Brand Name: FARMLITE


Model Number: QS-BAR4


Set Name: Daisy Chain


Manufacturer: FARMLITE


UPC: 761780382693


Manufacturer Warranty Description: 3 year manufacturer.


Manufacturer Part Number: DE-4


Unit Count: 1 Count


Included Components: Instruction Manual , 1x3M Long RJ11 Signal Cable,2xAdjustable Hanging Kits. 1x3M power cable.2xUnadjustable Hanging Kits


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jul 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great budget grow light--fantastic really--we'll see how long it lasts!
Size: 240watts
Review Image by Larry Gray
Review Image by Larry Gray
Review Image by Larry Gray
Review Image by Larry Gray
Review Image by Larry Gray
Saw these lights when they popped up on a prime day sale last week (october 11th) Never heard of FARMLITE before, but the price was real nice, and the specs were promising. I purchased two of these 240W FARMLITE fixtures for my 2.5x5x7 tent. Here are my thoughts: 1️⃣How do they fit in a 2x2/2x4 tent? Two of these lights would absolutely push the limits of a 2x4 tent. One might even be overkill for a 2x2. They are, in my opinion, "just right" for my 2.5x5 tent, and they MIGHT even be powerful enough to flower in as big as a 3x6 space. MAYBE. 2️⃣How are the specs? At 100% power, hanging 16" (This originally said 26", I just noticed my typo a year later, OOPS.) over the canopy, the Photone app was registering 45.6 DLI in the center below each fixture. This is more than enough for autoflowering plants. At 75% power, I have them hanging 12" over the canopy, and registering 42.9 DLI in the center below each fixture. This is also more than enough for autoflowering plants. 3️⃣Do they run hot? I have 3 cheap $15 6" clip fans in my tent--one is pointed at the drivers from the corner bar of the tent, and both drivers are only just warm to the touch after hours of running. The light bars themselves are also just warm to the touch. Tent temps at canopy sitting comfortably at 73F, while temps outside the tent in my basement are 68F. I imagine running them at 100% all the time would jump it maybe to 76-78F in the tent. Totally reasonable temperature ranges. 4️⃣Are they hard to put together? Not at all. They don't come with an instruction manual, just a little fold out pamphlet with light information and a "what this light comes with" page. It even comes with a screwdriver. Screw all 4 light bars into the 2 fixture bars, screw the fixture bars into the driver base, plug the light bars in, hang the lights, plug the drivers in. You're good to grow. 5️⃣Are the components quality? Yes. The diodes look like genuine samsung diodes to me, size is right, look is right. If they're fakes, they're damn accurate ones. The drivers are high quality from a reputable company--Can't say i'm familiar with them, but googling turns them up, feel free to check them out for yourself! The light was easily put together, held with just 10 screws and its solid! 6️⃣But what about the PPFD? I grow mainly in autos, so PPFD is irrelevant to me. But for the sake of this review, I measured with Photone on my phone, a note 9, and at 12" over canopy, center of the light, 75% power; it's registering about 706PPFD. From what my enthusiast grower discord buddies tell me, this is great for autoflowers, and just right for photoperiod plants. At full power, these will provide more than enough light for flowering photos. 7️⃣Conclusion of review At the time of writing this review, these lights are 149.99 USD. That is a good deal for the quality and light output of these lights, even if the diodes are older models. I purchased them during a prime day sale for $108USD a piece. That is an absolute steal. If you see these lights on sale and in stock--nab these suckers. You won't regret the purchase, they aren't a junk no-name low quality light. These are solid, high quality grow lights. 8️⃣Final thoughts Maybe in the future, we'll get an upgraded model and all they'll change are the diodes, and it would be an amazing budget light.. Hint hint, FARMLITE. ;) That would be amazing, and make these lights even better than they already are. I've had them in my tent for all of 5 hours as I write this review, so I'll update if anything catastrophic happens. 9️⃣October 28, 2023--1 year operational use update: Added a few new pictures to show what I've grown beneath these lights. I am currently in my 4th grow using the two 240w FARMLITE fixtures i purchased just 1 year and 10 days ago. I cannot stress to potential buyers enough: these really are fantastic lights for their price point. 🔟Final Final Thoughts: I have taken to recommending pretty much just FARMLITE lights when people ask me about grow lights. They are affordable and powerful and perfect for new growers who want to get into the indoor growing hobby. Now i'm telling you to give these a try, I doubt you'll be disappointed. Tent and Light pairing recommendations: 2ftx2ft, 2ftx3ft: One 240w 2ftx4ft, 2.5ftx5ft: Two 240w 3ftx6ft: Two 240w OR one 320w 4ftx8ft: Two, preferably Three 320w ... show more
Reviewed in the United States on October 18, 2022 by Larry Gray
    • High quality- work great
Size: 680watts
High lumens and not heavy. I have these right next to my Gavita 1700E’s that I paid 2x as much for —they are just as good and don’t require an external controller. The cord isn’t very long and I’d prefer a 220 v cord, but other than that, it’s a bargain for the price
Reviewed in the United States on June 7, 2026 by Amazon Customer
    • It gets hot
Size: 260watts
This Light is awesome. Just installed it so not sure how the plants will react but it is a huge upgrade from the flat panels i had. Heat is definitely more than expected but manageable. I have it on 50 percent and it is twice as bright as the old lights. And the build quality is very nice.
Reviewed in the United States on July 19, 2026 by john heinemann
    • Bright lights
Size: 680watts
The light is good so far. Very bright! U cannot daisy chain them as they advertised. Customer service was cool and very responsive. Plants thrive off of this light. Good bang for ur buck. I have 2 of these in a 4x8 and the heat isnt too bad. U can adjust the brightness and they look well put together. The coverage is amazing! I will buy again ... show more
Reviewed in the United States on June 11, 2026 by Bigg Zo
    • Outstanding. IYKYK type product
Size: 240watts
I picked up this light and its bigger brother during a fantastic sale. Rather than list all the lights I've played with before, I'll just say buy this one, if budget is a concern and performance above price point is important. Running this in a 32x32. Has Even wall-to-wall coverage. Plants absolutely loved this light. It will carry you through all phases. Something in the spectrum perked them way up. Definitely a light you'll play with the dimmer with. Again, I bought two of these and I have zero regret. While this fits in the category of budget light, the performance is not budget, many of us have an incessant need to look for the best product at the lowest price, stop here. If you have a toe or more in the spectrum, all puns intended, like I do, I'll reiterate a few necessary points: Easy assembly, true dimensions as listed, fantastic value, proper length power cord, Loved it to the point I bought the bigger light as well. A++ ... show more
Reviewed in the United States on December 30, 2024 by Aussie_snob
    • Two years of continuous 12/12 cycle with zero issues. Get a small fan for the driver. It gets hot.
Size: 320watts
Review Image by Chimi
Review Image by Chimi
Im super pleased thus far and would definitely buy this again. Its been on a 12/12. on/off cycle constantly for the past 24 months and still running strong. No burnt out leds and zero issues. I'd recommend a small fan to blow directly on the central driver. It will get overly hot without it. The size is perfect for a 4x4 grow tent. I got the 320watt with six bars. I chose that style so I could swap bars if anything ever burned out. Its decently heavy so use good hangers. No build in timer but I have a plug mounted one. I supplemented this with farmlite 120watt string leds and I get GREAT results. I've been able to finish 12 plants at once in my set up. Ill keep buying farmlite. I've purchased a 4 farmlite units and every single one is still going strong. Other "cheap" light always broke in a year. This is the one to go with. ... show more
Reviewed in the United States on April 25, 2026 by Chimi
    • Tomatoes growing beautifully under this.
Size: 320watts
This grow light is very good. I currently have 3 cherry tomato plants that are over 9 feet tall with this light. I also have a few Romas. Its very easy to use and I plug it right into my smart plug which gives me great functionality with timer. This grow light has a large reach I even used it to extend the life of other plants like Herbs, brocolli and my succulents are doing well. I sat some of them a little distance away from the light even and it reaches it fine. The light is durable do note it is bright. Im very happy with my purchase so far especially as I tried other lights that just didnt cut it. When comparing prices this one wins every time for me. ... show more
Reviewed in the United States on January 10, 2026 by Tee Jane
    • Do not buy
Size: 320watts
Good light came quickly easy to set up the only problem is it doesn't put our much pfds only 300
Reviewed in the United States on July 11, 2026 by Jared

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