Jasco Enbrighten Zigbee In-Wall Smart Dimmer review: Wiring novice? Jasco's idiot-proof switch has you covered

Jasco's new Enbrighten in-wall Zigbee smart lighting controls take some of the guesswork out of home wiring, an experience that can be daunting for the uninitiated. While the black wire is typically the "line" wire (the one bringing electricity to the switch), and the red wire is typically the "load" wire (the one carrying electricity to the light fixture), you're just as likely to discover that the line and load wires are both black. Reverse the line and load wires and the switch won't work. A voltage tester will tell you which wire is which, but since most people don't own one of those tools, they fall back to trial and error: 50/50 isn't bad odds, right? Wire up one of Jasco's Enbrighten in-wall dimmer or switches and Jasco's SimpleWire technology will automatically detect which wire is line and which is load, rendering those terminals interchangeable.