VIVOSUN LumaLight 400W LED Grow Light, Full Spectrum Plant Light, Smart Dimmable & High PPFD for Indoor Plants Seedling Vegetables Bloom, Fits 4×4/5×5 Grow Tents
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Availability:
In Stock.
Arrives
Monday, May 25
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Size: 4x4 400W
Features
- Low Costs & High Efficiency: VIivosun VS4000 LED grow light uses full-spectrum diodes & brand driver for high energy efficiency with 2.9 mol/J; Extremely high output but consumes only 400W of electricity. It can cover 4x4ft. area (5x5ft. max)
- Convenient Dimmable Lights: This LED grow light has a dimming knob & ballast, so it adapts to different plant growth stages by adjusting its output from 25% to 100%
- Sunlike Full-Spectrum Light: These VS4000 LEDs deliver the optimal full-spectrum coverage and power needed by your plants at all growth stages, supporting efficient photosynthesis for plants
- Low Noise & Low Heat: VS4000 LED grow lights have a power supply and ventilation holes; No fans needed means low noise; Ambient heat around this light is very low, so there are no burns or damage to your plants
- Warranty: Super durable and reusable; Comes with a pair of Vivosun US-patented rope hangers & 5-year after-sales service
Color: Warm White
Shape: Square
Material: Iron
Finish Type: Polished
Light Source Type: LED
Light Source Type: LED
Power Source: Corded Electric
Voltage: 277 Volts
Light Output Maximum: 301 Lumens
Maximum Compatible Light Source Wattage: 400 Watts
Light Source Wattage: 400 Watts
Mounting Type: Ceiling Mount
Light Source Special Features: Dimmable
Number of Light Sources: 1
Batteries are Included: No
Bulb Base: GU24
Wattage: 400 watts
Item Weight: 17.46 Pounds
Item Dimensions L x W x H: 23.5"L x 23.5"W x 3.23"H
Specification Met: Yes
Color: Warm White
Shape: Square
Finish Types: Polished
Style Name: Modern
Material Type: Iron
Shade Material: Glass
Brand Name: VIVOSUN
Model Number: VSL-LL400
Manufacturer: VIVOSUN
Manufacturer Warranty Description: 5 years.
Manufacturer Part Number: LED-400
Unit Count: 1 Count
Included Components: a pair of VIVOSUN US-patented rope hangers
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, May 25
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 4x4 400W
The VIVOSUN VS4000 LED Grow Light has been a game-changer for my indoor gardening setup. Here’s why I’m giving it five stars: High-Quality LEDs: The Samsung LM301 diodes provide excellent light output and efficiency. The full spectrum light is perfect for all stages of plant growth, from seedling to bloom. My plants are thriving under this light, showing vigorous growth and vibrant health. Dimmable and Versatile: The dimmable feature is incredibly useful, allowing me to adjust the light intensity according to the needs of my plants. This flexibility is perfect for managing different growth stages and ensuring optimal light conditions. Durable and Well-Built: The build quality of the VS4000 is impressive. It feels sturdy and durable, with a solid construction that gives me confidence in its longevity. The included hanging kit makes it easy to set up and adjust the height as needed. Energy Efficient: Despite its powerful output, the VS4000 is energy-efficient, helping to keep my electricity costs down while providing ample light for my plants. It runs cool, preventing any issues with overheating. Additional Accessories: The included glasses are a nice touch, providing eye protection from the intense light. The user manual is clear and helpful, making the setup process straightforward. Great Coverage: The light covers my 4x4 grow tent perfectly, providing even light distribution across the entire canopy. This ensures that all my plants receive adequate light without any dark spots. Overall, the VIVOSUN VS4000 LED Grow Light has exceeded my expectations. It offers high-quality lighting, energy efficiency, and versatile features that cater to all my indoor gardening needs. I highly recommend this grow light to anyone looking to boost their indoor plant growth with reliable and effective lighting.
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Reviewed in the United States on August 4, 2024 by Chris Barley
Size: 4x4 400W
I've been using this light about a year now. In that time I have flowered 4 sets of plants. The results have been very good. Very nice, dense buds. This light penetrates the canopy reasonably well. The lights are adjustable and that's good. I usually start my plants under a fluorescent light set up and move them at about 6 or so weeks from the low light set up to the Vivosun VS4000 tent. When you first introduce them, they need the lower setting to adjust, or you risk light burn. I start them on 40% and work them up over time. The light emits some heat but that's easily managed with ventilation. One of my lights had a problem about 11 months after I started using it. I contacted Vivosun and went through a series of emails explaining a few things to them. This was a bit of a pain but I understand there's a process they are following. In any case, the light was replaced with a new unit which I received promptly. Of course, ideally there would be no issues, but I am satisfied with the manner in which the warranty was handled. This is a good light if you are using a 3x3 tent.
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Reviewed in the United States on July 26, 2022 by Chris Dennis
Size: 4x4 400W
I've purchased a lot of Vivosun's products for their competitive prices but their quality has never failed me. This set of light is hands down gorgeous and efficient. I use it in my 5x5 grow tent, and the plants are doing great under it. The things I love about this light: + The affordable price. Nothing beats Vivosun's in that matter. A comparable light with Samsung diodes could run easily over $500. + Look at how thin and lightweight it is in the attached photos. Amazing!! + It is so bright you NEED to make sure to wear glasses. My plants are loving it. Light has the dimming function; simply turn the knob to set it at 40%, 50%, 60%, 80% and 100% capacity. + It's completely quiet. No more annoying ticking sounds from the failing purple/pinkish light that I previously used. + The green quick-release button is an awesome feature for easy rope adjustment. + It could run a little warm in a small enclosed space, but nothing out of ordinary for a 4000 light. In fact, I think it's emitting less heat than the 2000 (200w) light I got from another brand. Personally, I'm not using it with a fan, but it wouldn't hurt if you want one.
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Reviewed in the United States on June 22, 2021 by Amber
Size: 4x4 400W
Amazing results just bought a second one. The second one is upgraded I'll post results of second light in a few months
Reviewed in the United States on February 26, 2026 by Jeremy Stanley
Size: 4x4 400W
Ordered this light in July 2023, it's March 2024 and it's dead. When to check on things and it is totally dead. Contacted customer support. They said it has a 5 year warranty. Waiting to hear from customer service rep. Will continue this review when I know more. Customer support contacted me within a day. Had to do a couple of things to verify light not working. There is a new light on the way totally covered by warranty. Excellent customer service. They have earned a loyal customer. Thanks Vivosun.
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Reviewed in the United States on March 12, 2024 by Charles Deweese
Size: 4x4 400W
Really nice.
Reviewed in the United States on September 30, 2025 by Al
Size: 4x4 400W
we bought it to grow hot peppers and a few other things. light and adjustable hangers are high quality, works perfectly. Light has a very natural sunshine feel to it,
Reviewed in the United States on June 12, 2025 by Larry F.
Size: 4x4 400W
Bought the VS4000 for my first ever grow. Hung it up in the tent to test it for a week or so before I began my grow. After 1 week, the brightness when ran at 100% was cut by ~60% and it never functioned again properly after that. Before that, it worked flawlessly. Reached out to Vivosun. They offered me a $200 refund on a $500 light and told me I could keep the light. Why the hell would I want to keep a broken light? Customer service takes over 24 hours to get back to you and they don’t help you at all. Anyways, Amazon was awesome about me returning it. I’m in the middle of that process now. STAY FAR AWAY! I’d return my tent, filter, and fan too if they weren’t such a pain to take down. Im returning the VS1000 that I bought as well just because I no longer want to support anything Vivosun.
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Reviewed in the United States on April 5, 2022 by Amazon Customer