The ROI-E200 is the newest member of the ROI-E series. With it’s versatile compact design and high intensity 4k spectrum this fixture is excellent for commercial cultivators that need reliable low profile lights that perform excellent in all stages of growth and excel in veg. The ROI-E200 was also designed to be a functional seed to flower fixture, for the hobbyist looking to cultivate a quality garden in limited space.
The ROI-E420 was specifically design with the hobbyist “in tent” applications and cultivators who need a compact led fixture that produces high photon output. The e420 is great for tent grows as it’s compact design relieves grow space while still providing high energy output to the canopy producing impressive yields during bloom. The E420 is also great when used as a efficient veg fixture in large scale and commercial cultivation's as the 3k full phase spectrum provides all the PAR needed 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 increase yield potential.
The ROI-E680 is the perfect balance of size and performance for the experienced hobbyist and professional cultivators alike. The E680 is a more portable and light weigh fixture accommodating cultivation's with modest space availability, tents, vertical gardens and any commercial application facilitating 4x4 canopies. The ROI-E680 is a very powerful fixture and a proven versatile workhorse in any garden, producing heavy yields and high quality harvests. Growers Choice does recommend the E680 be used with CO2 supplementation to promote a healthy cultivation and the largest yield potential.Without using CO2 the grower may be introducing more light than the plants can process, possibly causing stunted growth or light damage. Know your garden and provide light accordingly.
The ROI-E720 is a user friendly commercial grade fixture. However, Grower’s Choice does not recommend the E720 for inexperienced growers or tent applications. The E720 is designed as a high output fixture for commercial cultivation's, emitting nearly the same PPF as a standard 1000w DE HPS fixture and lamp. With intense PPF, 3k full phase spectrum and balanced PPFD the ROI-E720 has the potential to produce the highest yields and superior quality. GC highly recommends this fixture be used in professional, environmentally controlled cultivation’s that supplement CO2. Without using CO2 the grower may be introducing more light than the plants can process, possibly causing stunted growth or light damage. Know your garden and provide light accordingly.