THIS ITEM SHIPS FOR FREEIntroducing the Growers 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