Oh interesting, the Halo lights look pretty darn close https://www.cooperlighting.com/s/connectedlighting/products/halo-home/rl4-and-5-6-smart-led-downlight/index.html
That’s a good point on 4 inch being harder to find than 6 inch, I didn’t even consider that. I might just buy one Globe Electric to see how it works - worst case it’s a wasted $15 and back to Philips?