ELCO Koto recessed lighting works differently from the sealed canless downlights that fill most recessed lighting aisles. Instead of a separate fixture for every size, trim style and application, Koto is built as a system of LED modules, housings or canless frames, and twist on trims that all work together. One module can serve a 2″ trimless downlight in a hallway and a 4″ adjustable pinhole over a kitchen island.