Mars Hydro FC-4000-EVO 400W Full Spectrum LED Grow Light

Precision-engineered for high-demand 4x4 grows.

The Mars Hydro FC-4000-EVO is a 400W full-spectrum LED grow light designed for serious growers looking to maximize yields in a 4' x 4' tent. Powered by Samsung LM301H EVO diodes and a highly reflective bar-style design, this light delivers exceptional PAR output and uniform coverage from edge to edge.

It runs silent, runs cool, and gives you professional results with full-cycle capability. The FC-4000-EVO brings you dense buds, vibrant greens, and tighter internodes — all while lowering energy consumption and maintaining a cool environment. Perfect for single-tent setups, vertical racks, or high-output home grows.

• 400W power draw with Samsung LM301H EVO diodes
• PPF: 1137 μmol/s | PPE: 2.85 μmol/J
• Coverage: 4' x 4' flowering / 5' x 5' veg
• Detachable dimmable driver + daisy chain ready
• Aluminum heat sink for silent, passive cooling

Shipping Information

Exceptional products deserve exceptional service. Orders to the US and Canada arrive in just 2–10 business days. Spend over $125, and shipping’s on us—it’s our way of saying thank you (conditions apply). For details, see our Shipping Policies.

Returns & Exchanges

Your satisfaction matters. Return your purchase within 30 days, hassle-free, as long as it’s unopened and in its original condition. Learn more in our Returns & Exchanges Policies. Shop confidently—your peace of mind is guaranteed.