The ROI-E420 was especially designed with the hobbyist "in tent" applications and growers who need a compact led fixture that produces high photon output. The e420 is excellent for tent grows as it's compact design alleviates growth space while still offering high energy output to the canopy producing exceptional yields during bloom. The E420 is also excellent when utilized as an efficient veg fixture in large scale and commercial cultivation as the 3k full phase spectrum provides all the PAR required for all stages of plant life. It is not necessary to run CO2 with the ROI-E420. However, supplemental CO2 between 450-800 ppm will be beneficial and also increase yield potential.
