So far, I’ve resisted, but I understand her frustration. My Lutron Caséta Original Smart Dimmer Switch Kit, $100, is the only one of these devices that has worked flawlessly for years ...

Lutron’s original Caséta dimmer switch is an equally good product and costs slightly less, but it looks a bit busier. TP-Link’s Kasa Smart Wi-Fi dimmer switch is remarkably inexpensive ...