The M4 400W is a vegetative LED grow light featuring Samsung 301H EVO diodes and a blue-rich spectrum optimized for vegetative growth. It is designed to promote tight internodal spacing, strong root development, and vigorous structural growth, while providing high efficiency and precise intensity control.
• System Power: 400W
• Efficacy: 3.1 μmol/J
• PPF: 1,240 μmol/s
• LED Source: Samsung 301H EVO
• Spectrum: Blue-dominant vegetative spectrum
• Dimming: 25–100%
• IP Rating: IP66 — sealed against dust and water ingress
• Weight: 29.8 lbs
• Dimensions: 43.8 × 48.0 × 2.5 in
• LED Lifetime: 54,000 hours
Key Advantage: High-efficiency 3.1 μmol/J LED technology with a blue-rich spectrum specifically optimized for vegetative growth, plus 25–100% dimming for precise light-intensity control.