Properly wiring a smart wall switch requires a secure electrical foundation and adherence to strict safety rules. First, turn off power at the main breaker and test with a voltage detector. Smart switches almost universally require a neutral wire bundle (typically white) tucked inside the back of the wall box, in addition to the line (power from panel), load (wire to light), and ground (bare copper) wires. Connect the switch's green wire to ground, the white wire to the neutral bundle using a secure wire nut, the black line wire to the hot source, and the remaining traveler or load wire to the light feed. Wrap terminals, push wires neatly into the box, and secure the yoke. Verification: Restore power at the breaker and test both manual paddle actuation and app connectivity to ensure the switch operates smoothly without flickering.
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