How do you fix 3 garden lights on one switch?

To fix three garden lights on one switch, first, ensure the power is off at the circuit breaker. Connect the lights in parallel by running a wire from the switch to each light fixture, ensuring that the positive and negative wires are properly connected. Use appropriate connectors to secure the connections, and make sure to follow local electrical codes for safety. Once everything is connected, turn the power back on to test the lights.