VIVOSUN
VS4000 Full Spectrum LED Grow Light Board 400W, High PPFD & Low Heat, 4 x 4 Ft. Coverage
Best high-performance lighting for serious indoor home growers.
Elevate your indoor garden with the VIVOSUN VS4000 LED Grow Light. This 400W board delivers a full-spectrum light, powered by Samsung LM301 diodes, to promote vigorous plant growth and abundant yields through all stages, from seedlings to flowering. It operates silently and features an auto-dim function for easy light intensity adjustment. Built with durable aluminum and metal, this light ensures long-term reliability. Its efficient design provides optimal light penetration for robust photosynthesis and impressive harvests.
$359.99
Owner Satisfaction
4.6
/ 5
Category Rank
124
/ 1326
#124 in Plant & Herb Growing Kits
Price vs Category Average
+201%
Above average
Watts
400
/ W
Who it's for
- Serious growers aiming for maximum harvest yields
- Indoor gardeners managing heat-sensitive plant environments
- Botanists needing consistent light for all growth stages
Who should skip it
- Budget-conscious hobbyists starting with limited funds
- Commercial growers requiring uniform light for large-scale flowering
- Users working within cramped or small grow tent setups
Performance breakdown
Photosynthetic Efficiency
Samsung LM301 diodes deliver industry-leading light output for maximum plant growth.
Thermal Management
Aluminum construction dissipates heat effectively without the need for noisy fans.
Coverage Uniformity
Designed to provide consistent light distribution across a full four-foot canopy.
Control Versatility
Smart home integration and precise dimming offer excellent control over light cycles.
Build Durability
Rugged metal housing ensures long-term reliability in humid indoor growing environments.
Energy Efficacy
High-efficiency diodes convert electricity into usable light with minimal wasted energy.
Key Specs
Watts
400 W
Input Voltage
120 V
Lumens
4000 lm
Beam Angle
80°
Dimmable
Yes
Energy Efficiency
2.9 mol/J
Smart Features Compatibility
Amazon Alexa, Google Assistant
Rating
Indoor
Features
- Full spectrum light for maximized photosynthesis
- Utilizes Samsung LM301 diodes
- Suitable for all plant growth stages
- Silent operation
- Auto-dim function
- Durable aluminum and metal construction
- Efficient 400W performance
- Adjustable brightness from 25% to 100%
What customers say
The VIVOSUN VS4000 LED Grow Light earns high praise for its performance and efficiency. Users consistently report superior plant vigor, density, and yield due to the exceptional light intensity and uniform full spectrum output. A key driver of satisfaction is the light's engineering; it maintains high output while generating significantly low heat. This reduced thermal footprint simplifies environmental control for growers. Although the initial cost is an investment, customers find the VS4000 offers excellent value. They cite its energy efficiency and the use of reliable, professional grade components that promise longevity. Overall, the VS4000 is celebrated as a powerful, efficient upgrade delivering professional results for serious indoor cultivation.
Know before you buy
The VS4000 is designed to provide optimal light coverage for a 4 x 4 foot growing space, making it ideal for standard grow tents or dedicated indoor garden areas.
Yes, the full-spectrum output is engineered to support plants from the seedling stage all the way through to the flowering and harvest phases.
The light features an adjustable brightness range from 25% to 100%, allowing you to manually dial in the exact light intensity your plants need at different stages of development.
No, the VS4000 operates silently. It relies on its durable aluminum and metal construction to dissipate heat efficiently without the need for active cooling fans.
Yes, the VS4000 is compatible with Amazon Alexa and Google Assistant, allowing you to integrate it into your smart home setup for convenient control.
This board utilizes high-quality Samsung LM301 diodes, which are known for their efficiency and ability to provide the consistent, full-spectrum light necessary for robust photosynthesis.
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