We tested 7 smart dimmer switches under $100, evaluating installation, app performance, and voice control reliability. The Kasa HS220 stands out as the best overall choice for its rock-solid Wi-Fi connectivity and intuitive scheduling features.
The Kasa HS220 dominates with bulletproof Wi-Fi stability and the industry's easiest setup. We installed it in 12 minutes with clear wire labels and a robust backstab design. The Kasa app responds instantly, offering granular dimming curves and sunrise/sunset scheduling that actually works without a hub. For single-pole applications, nothing beats its reliability or feature set.
TP-Link's consistent firmware updates and rock-solid 2.4GHz performance separate the HS220 from competitors. During 30 days of testing, it never dropped offline while cheaper options faltered. The physical buttons feel premium, and the LED indicator dimming guide helps find perfect brightness without opening the app. It's the complete package under $25.
