Amazon with Ensenior Direct has the 16-Pack Ensenior 4" Ultra-Thin LED Recessed Ceiling Light w/ Junction Box (5000K Daylight) for $140 - 5% off coupon (click "Save an extra" box) - 25% off with coupon code Q7C3YIBU [Exp 9/21] = $98 with free shipping. 

The coupon also works on the 6" model as well as the other color temps.