The Grower’s Choice 2K 600W SE is a double-ended Super HPS (High‑Pressure Sodium) lamp crafted to deliver intense flowering power in professional grow environments. Operating at 600 W, it produces a rich 2,000 K spectrum dominated by red and yellow wavelengths, with supplemental green, blue, far-red, and UV peaks. This spectrum emulates autumn sunlight, triggering metabolic activity during flowering and stimulating resin production. Thanks to its high photon flux the bulb delivers strong PAR output, equating to approximately 90,000 lumens at 100 hours in and an efficacy near 150 lm/W. The quartz arc tube construction ensures spectral consistency and durability, allowing the lamp to maintain about 90–95% of its initial output after 10,000 hours, with overall rated life reaching up to 15,000 hours before significant lumen depreciation. But if this lighting system is too powerful for your grow space, then take a look at the ROI-E420 system, or the smaller 10K 1000W SE for better light management.
