Review on ⚡ Siemens Q120DF Circuit Breaker: Enhanced Functionality for Effective Performance by Neil Bodell

Run a new 20 amp circuit and installed this switch for expected safety. The circuit has two sockets, a switchable LED ceiling light and a dawn to dusk (non-switchable) LED barn light. Once installed, the switch worked fine for several hours with the light on from morning to night, but worked at night. The same thing happened over the next three nights. The switch never worked right away, only at night in absolute dry conditions with a single wire as the only load. Eventually abandoned and replaced with a GFI switch that has never tripped regardless of conditions or load since installation. I'm not sure if it's the LED or a current leak in the circuit that caused the dual switch issue. I'm giving the product one star for now, but will come back and check the schematic to be on the safe side if there's an obvious problem that can be fixed.