The MASTER GreenPower CG T 400W 1SL/12 is a single-lamp pack of twelve high-performance 400W HPS grow lights tailored for cannabis flowering — making it a great option for growers that want to outfit multiple fixtures. With approximately 56,500 lumens at a warm 2000K spectrum, each lamp promotes dense bud development, increased resin production, and deep canopy penetration — making it perfect for mid‑size flowering rooms or supplemental lighting in larger spaces. Its spectrum promotes efficient light absorption and structural growth during flower, with up to 30,000 hours of stable output. Featuring a standard E40 base, it’s compatible with most 400W ballasts and reflectors for easy retrofit upgrades. Looking for an option with enhanced durability and reinforced performance? Consider the MASTER GreenPower CG T 400W. For smaller setups, the 250W option —MASTER GreenPower CG T 250W — delivers similar spectrum benefits in a lower-wattage design.
