These unassuming devices promised to lower my electricity bills - only this one was legit

The article warns that plug-in “power-saving” devices sold online are scams that neither reduce energy usage nor improve equipment lifespan, and may pose safety risks due to poor construction and fake components. Instead, it recommends using legitimate smart plugs or smart power strips (e.g., TP-Link Tapo) to remotely control devices and monitor energy consumption, enabling practical, measurable savings on power bills.