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
Thursday, Jan 8
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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: Aluminum
Finish Type: Polished
Light Source Type: LED
Color: Warm White
Shape: Square
Material: Aluminum
Finish Type: Polished
Light Source Type: LED
Shade Material: Glass
Power Source: Corded Electric
Brand: VIVOSUN
Item Weight: 17.5 Pounds
Style: Modern
Voltage: 277 Volts
Brightness: 301 Lumen
Maximum Compatible Light Source Wattage: 400 Watts
Light Source Wattage: 400 Watts
Mounting Type: Ceiling Mount
Specification Met: Yes
Number of Light Sources: 1
Are Batteries Included: No
Bulb Base: GU24
Product Dimensions: 23.5"L x 23.5"W x 3.23"H
Light Output Maximum: 301 Lumens
Manufacturer: VIVOSUN
Wattage: 400 watts
Item Weight: 17.46 pounds
Item model number: LED-400
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jan 8
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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Top Amazon Reviews
Size: 2x2 100W
This is the second unit I purchased of these, not because the 1st broke or anything bad happened, but because we love the 1st one so much we wanted to add a second. If you are into seed starting or growing things indoors, then these lights rock. Well worth the price, quality made, and they are so bright you will need to wear the included green glasses. It was super easy to set up, and the different hanging attachments were so handy to have, so you can adjust as your plants grow.
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Reviewed in the United States on October 18, 2025 by hillreef
Size: 2x2 100W
I am using this for my potted citrus trees and sprouts. It's working well so far. It's only been about a month or so. The set up was easy. It's very easy to use. It does give off some heat, which is nice during colder months which is a random plus. It's not a lot of heat though. The controls on the side come with different % of light level you want to use. There is an ability to use it remotely but I did not do that. It was easier for me to use a Smart Plug instead to turn it on and off. Basically no noise. It feels sturdy when holding it and hanging it up. I believe it's only 1 color option. I do not notice any crazy change in my power bill with this either. You do need to keep in mind that when putting your plants inside from outside that you'll need MORE light time. Maybe do a 12-16 hour on and 6-8 hours off.
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Reviewed in the United States on November 10, 2025 by Cory Stephens
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: 2x4 100W 2Pack
Work as they should.No issues so far.
Reviewed in the United States on November 1, 2025 by matthew p gambino jr
Size: ef of 2 pk
Great lights, easy to adjust. Best starts I’ve ever had using these lights. Highly recommend. Only drawback is they are small for standard seed trays.
Reviewed in the United States on January 1, 2026 by Tj
Size: ef of 2 pk
Great quality grow lights. My favorite feature is that they are daisy-chain compatible. Great price as well.
Reviewed in the United States on December 2, 2025 by Bryan Whittington
Size: 2x4 200W
Light arrived when it was supposed to. Everything worked, easy assembly. Plants are visibly healthy. Ample lighting for a 3x4' tent.
Reviewed in the United States on December 12, 2025 by Doylane Craig
Size: 2x2 100W SE
Mixed bag with this one. The good is that it is clearly well made and I like the pulley system. It gives off very bright light with a large area that will definitely be sufficient for my needs. Unlike a lot of reviewers who are growing "medicinal" plants in their basement in a tent...you do you, I'm using mine for veggie and flower seed starting on top of a dresser. The bad: No on-off switch. This means that every time I want to turn it off, I need to unplug the unit, which is awkward. Between that and the fact that there's no timing feature, I'm going to need to pay for an external timer to plug it into, or maybe set it up on my smart plug if I can find it in the depths of my closet. The product says it comes with an extra set of hangers...it doesn't...and that's false advertising. The documentation in the product box lists additional items as included, such as some sort of protective glasses, which aren't in the box. The listing doesn't advertise those, so I wasn't expecting them, but it was really confusing. Instructions also show a dimmer feature that isn't available on this model...again, confusing.
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Reviewed in the United States on March 9, 2025 by K. Minger