Thanks for the responses all! I understand now that it is from the type of bulb. It is unfortunate because the dimmer is an "led dimmer" and I bought led "dimmable" bulbs, and apparently that...

@Tony Thanks for the response The old switch was an on/off only, I was upgrading with the HS220 to have the dimming and smart capabilities. Anyway, just now I installed an old-school dimmer i had...

Hi there! I have TP-Link HS220 "Smart Dimmer" (TP-Link Page). I have installed this dimmer to control 4 recessed can light bulbs. The bulbs are "dumb" TCP RLBR30950KD6 (Energy Star Page) These bulbs...