Connect the feed line to one of the screw terminals on the side that has the metal bridge. Powering a double switch controlling two separate light fixtures from a single power source isnt a casual diy project unless youre confident of your skills.

Wiring Double Switch For New Ceiling Fan Electrical Diy
How to wire a double switch to two separate lights. Form a c shaped loop in one end of the black wires and hook it in a clockwise direction around the bottom screw terminal on the side of the switch. This is done so both light circuits will receive power from the same source. On the other side you will see two screws with no metal bridge. How to wire two light switches with one power supply. Look at the terminals on the double gang switch. Cut two lengths of black wire and two lengths of bare copper wire about 6 inches long.
On one side you should see two screws connected by a small piece of metal. Strip both ends of each cable with a knife separate the wires and remove 12 inch of insulation from the end of each. Tighten down the second screw on that side. Though it is not difficult to wire a double switch careful attention to safety is crucial to prevent injury. To wire a double switch youll need to cut the power remove the old switch then feed and connect the wires into the double switch fixture. Connect the light fixtures by wiring their black wires to the black cable.
Strip about 34 inch of insulation from one end of each black wire. For example you might want to turn on a bathroom light separately from the ceiling fan.