A high-density horticultural system having a lighting system is provided. The horticultural system comprises a lower shelving component that is attached to a first bracket within a vertical racking system. The horticultural system also comprises an upper shelving component. The upper shelving component is attached to a second bracket within the vertical racking system, wherein the second bracket is vertically displaced 11 inches from the first bracket. Additionally, the horticultural system comprises a lighting system that extends down from the upper shelving component. The lighting system component has a lighting fixture that extends from the top portion of the lighting system, a bottom cover that is at the bottom portion of the lighting portion, and a duct between the lighting fixture and the bottom cover.
