Medic Grow UV + FR 4 ft Supplemental Bar LED Grow LightThis 4 foot supplemental Bar LED is designed to deliver targeted UV and far red (FR) light as an add on to your main grow lighting setup. The UV portion helps suppress pests and mold while enhancing plant compounds, flavor and aromareported yield improvements of ~5 10% are quoted. Meanwhile, the far red light (700 800 nm) activates the Emerson Effect, boosting photosynthetic efficiency, accelerating growth and increasing flower size. Supplemental