Sunco 6 Pack 4 Inch Ultra Thin LED Recessed Ceiling Lights Slim, 5000K Daylight, Dimmable, 10W=60W, Smooth Trim, Wafer Thin, Canless with Junction Box - Energy Star - Amazon.com
JJC Smart Recessed Lighting 4 Inch,2700K-5000K & RGB Slim Led Recessed Ceiling Lights with Junction Box,16 Million Color Changing Timing 9W 630 Lumen Dimmable LED Downlight by Bluetooth APP Control - Amazon.com
Goodlite G-20221 - 4 Inch Slim LED Downlight Retrofit 12 Watt - Round – lightingnbeyond.com
Eurofase 4" Black LED Ultra Slim Round Recessed Downlight - #82H36 | Lamps Plus
Luxrite White 3-in 400-Lumen Switchable White Round Dimmable LED Canless Recessed Downlight (4-Pack) in the Recessed Downlights department at Lowes.com