Introducing the Grower's Choice UV-R Bar set. A Horticulturally engineered supplemental bar set, which provides a key spectrum to further promote overall health, robust plant growth, and increased resin production, working much like our 10K finishing bulbs. Our new UV-R bar set is specifically designed to pair with the ROI-E720, plug and play, no additional wiring needed. The bar itself is controllable and dimmable when paired with a GC – Master Controller. Our UV-R bar set is a Horticulturally engineered full spectrum UV fixture including 6 different wavelengths providing a true full spectrum UV solution for the best growing results!