Here is a 4-inch round regressed LED downlight with a white trim and armored cable, built for commercial ceilings from Lotus LED Lights, part number LL4RR-40K-WH. Armored cable and metal connectors make it suitable for open plenum spaces, and the 2-inch profile fits ceilings with limited depth above the drywall.

Light output is about 1020 lumens at 4000K (neutral white) for 14.5 watts, with a CRI of 90+. The driver is pre-connected in a small box and the fixture is retained by built-in spring clips.

• Manufacturer part number: LL4RR-40K-WH
• 14.5W, 120V input, fixed 4000K (neutral white)
• About 1020 lumens at 4000K, 90+ CRI, 90° beam angle
• TRIAC dimmable with the included 120V driver; 0-10V driver available as an upgrade from the manufacturer
• Type IC rated and air-tight; wet-location and open-plenum rated
• 5" outside diameter, 2" profile, 4" to 4.25" ceiling cut-out; about 2" of clearance above the ceiling for the driver
• cULus listed; 10 Years Residential / 5 Years Commercial manufacturer warranty

Sold per fixture, driver included.