Juno Lighting TC44R Retrofit Led Recessed Downlight, 4", Satin Chrome Ceramic bi-pin socket with aluminum heat shield Remodel springs accommodate up to a 1-1/8-inch ceiling thickness Steel housing is fully assembled for ease of installation 120-12V 50VA thermally protected magnetic transformer Pre-wired junction box includes three 1/2-inch knockouts with pryout slots, 4 non-metallic sheathed cable connectors, and ground wire May be dimmed using dimmers specifically designed for magnetic transformers UL Listed, cUL, CSA certified for through-branch wiring, maximum 4 No. 12 AWG minimum 90 degrees C branch circuit conductors: 2 in, 2 out Thermally protected against improper use of insulation and lamps