Flannery’s Strata Universal Light Cove Drywall Key Edge (ULDK) is an extruded aluminum trim that creates a ledge for LED’s or a light fixture over a suspended drywall ceiling and allows for an indirect lighting effect. The Key Edge has a sloped knife edge to create a unique cove detail which allows for an indirect lighting effect above suspended drywall track and gypsum board. Flannery's Light Coves are called “Universal” since any LED or Light Fixture manufacturer can be integrated into them.