VIVOSUN VS4000 LED Grow Light with Samsung LM301 Diodes &Brand Driver Dimmable Lights Sunlike Full Spectrum with Grow Room Glasses for Seedling Veg & Bloom Plant Grow Lamp for 4x4/5x5 Grow Tent

Low Costs & High Efficiency: VIVOSUN VS4000 LED grow light uses Samsung LM301 diodes & brand driver for high energy efficiency with 2.9 μmol/J; Extremely high output but consumes only 400W of electricity

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 40% 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 power supply and ventilation holes; No fans needed means low noise; Ambient heat around this light is very low, so there is no burns or damage to your plants

Warranty: Super durable and reusable; Comes with grow glasses, a pair of VIVOSUN US-patented rope hangers & 5-year after-sales service