Shelly 1 Gen4 4-pack

Setup was surprisingly quick for a four-pack — each relay connected to WiFi in under two minutes, and the Bluetooth fallback saved me when my router hiccuped mid-config. They're compact enough to tuck behind my existing wall switches without any cramming.

Pairing them with my existing KNX setup took under ten minutes per unit, and the WiFi response feels instant when I toggle lights from my phone. Bluetooth setup was a nice fallback when my router was acting up, too. These little relays just work, and the 4-pack price makes outfitting multiple rooms

The relay units are so compact they fit right behind my light switches without any squeezing. I’ve got four of them controlling different rooms now, and the WiFi connection has been rock solid for over a week.