Sunco New Construction Recessed Cans include a screw on the side (see pic 1).With the power off, loosen the screw on the New Construction Can and wrap the ground wire from the Disk Downlight around the screw (see pic 2). Gently tighten the screw. NOTE: Consult with a qualified electrician if you are unfamiliar with proper electrical wiring connections. All electrical connections for Sunco Lighting products must be in accordance with local and National Electric Code (N.E.C.) standards.