I've been doing a little experimenting and am still confused. I have had exactly the same one piece can replacement downlights in my family room as I had in the kitchen, older generation Commercial Electrics from HD. The family has a 2334-222 KP, the kitchen a 2486. Neither one had any flicker for about 3 years, but the kitchen started to flicker about 6 months ago. So I swapped out the kitchen KP to a 2334-222, and they still flickered. I tried some Feit's from Costco, and they were worse, it was the first time the wife ever noticed it. Sort of cracked me up, she kept looking out the window for the flashing light until I 'splained it.?
So from what I've read here I ordered some Philips ones from Amazon that said they were flicker free. And they are, thank goodness. Dim nicely too. The model is Philips LED 802660.
URL is https://www.amazon.com/gp/product/B08667H59V/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
But what I don't get is why the kitchen started acting up after all that time, while the family room has nary a problem. ?