Trellis lighting apparatus, system, and method of use

A heat sink for use in a lighting assembly, the heat sink comprising:

• a polygonal body extending a length and comprising an outer surface, an inner surface opposite the outer surface, a lumen defined by the inner surface and a pair of openings at opposite ends thereof, at least one hole extending through the polygonal body from the inner surface to the outer surface, a first body segment extending the length, and a second body segment coupled to the first body segment and extending the length, the first body segment including planar portions on an outer surface thereof that are configured to support an LED strip thereon, the second body segment including fins extending outward therefrom, the inner surface of the polygonal body including a plurality of fins extending inward and positioned around a perimeter thereof;
• and
• a cover permitting light to pass therethrough, the cover configured to be coupled to the polygonal body such that the cover covers the first body segment and not the second body segment.