This little 3 inch diameter very high CRI (95+) downlight easily retrofits into ceilings. Just cut a 3 inch diameter hole and connect the 120V AC in the external LED driver enclosure provided. Then use the integrated low voltage connector wires to connect the driver to the light. Press the spring loaded drywall clips upward and insert the light into the hole in the drywall. The spring loaded clips will snap down and hold the light firmly in place.
This little light consumes only 6 watts of power to produce 475 lumens. It is available with a 25 or 40 degree lens and can be ordered in either warm white 2700K or clean white 3000K.