Here’s how to install a smart switch safely and correctly so you can upgrade your home without hiring an electrician. Step 1: Kill the Power → Go to your breaker box and shut off the power to the light you’re replacing. Safety first. Step 2: Open the Box → Remove the screws on the switch plate, pull out the old switch, and take note of the wires. Step 3: Identify Wires → Black (line) = power from the breaker Red or black (load) = to the light fixture Copper/green = ground Bundled whites in the b