How do you wire a traffic light to 240 volt mains?

Wiring a traffic light to a 240-volt mains supply should only be done by a qualified electrician, as it involves high voltage and safety risks. Start by ensuring the power is turned off at the circuit breaker. Connect the traffic light's live wire to the live supply, the neutral wire to the neutral supply, and properly ground the system according to local electrical codes. Always use suitable connectors and enclosures to prevent exposure to electrical components.