How to Wire a Double Light Switch in the UK: 1 Minute to Master Double Light Switch WiringSarah ThompsonMay 24, 2025Table of ContentsUnderstanding the ComponentsStep-by-Step Wiring InstructionsFinishing UpMaintenance TipsFAQTable of ContentsUnderstanding the ComponentsStep-by-Step Wiring InstructionsFinishing UpMaintenance TipsFAQFree Smart Home PlannerAI-Powered smart home design software 2025Home Design for FreeWiring a double light switch in the UK may seem daunting, but with a bit of guidance, you can master this essential DIY skill. Connecting the switch correctly ensures that you can control two separate lights from one location, providing convenience and enhancing the functionality of your space.Before you begin, ensure your safety by switching off the power at the circuit breaker. Having the right tools on hand—such as wire strippers, a screwdriver, and electrical tape—will also help streamline the process. In this article, we will guide you through the steps necessary to wire your double light switch effectively.Understanding the ComponentsA typical double light switch consists of two sets of terminals. Each set controls one light. You will typically find three terminals: L1, L2, and COM on each side. The COM terminal is used for the live connection, while L1 and L2 are for the switched connections. Knowing this is crucial for proper installation.Step-by-Step Wiring Instructions1. **Locate the Wiring**: Begin by identifying the existing wires that connect to your current switch. There should be a live wire (usually red or brown), a neutral wire (blue or black), and an earth wire (green/yellow).2. **Connect the COM Terminal**: Attach the live wire to the COM terminal on one side of the double switch. This provides power from the circuit to the switch.3. **Attach L1 and L2 Terminals**: Connect the outgoing wires for the two light fixtures to L1 and L2 terminals, respectively. Make sure the connections are secure to avoid any electrical issues.Finishing UpAfter securing all terminal connections, return to the circuit breaker and turn the power back on. Test each switch to ensure that it controls its corresponding light fixture as intended.Maintenance TipsRegularly check your double light switch for any signs of wear and tear. If you notice any flickering lights or unusual noises, it might be time to consult a professional electrician.FAQQ: What tools do I need to wire a double light switch?A: You will need wire strippers, a screwdriver, electrical tape, and a voltage tester for safety.Q: Can I wire a double light switch without a neutral wire?A: Yes, but it will require special attention and may involve different wiring methods. Consult a qualified electrician for guidance.Home Design for FreePlease check with customer service before testing new feature.