How should a lighted bathroom mirror be wired?

I. Essential Pre-Wiring Steps: Safety Preparations + Component Inspection
1. Safety Prerequisites (Of Utmost Importance!)
Power Disconnection: Switch off the main power supply or the corresponding circuit breaker. Verify disconnection using a voltage tester (only when the tester does not illuminate is it safe). Never connect wires under live conditions.
Environmental Requirements: Wire connections only when bathroom walls are dry. Avoid working after showering or when surfaces are damp. Ensure connection points are distant from areas directly exposed to water flow (e.g., beneath shower heads).
Protective Equipment: Wear insulated gloves and slip-resistant footwear. Tools (screwdrivers, wire strippers) must be fully insulated to prevent electric shock.

2. Component Inspection
Mirror specifications: Verify the rated voltage of illuminated mirrors (typically 220V domestically), power rating (to prevent overload), and waterproof rating ≥ IP44 (indicated on mirror body, ensuring splash resistance).
Wiring Accessories: Mirror-supplied power cable (usually with plug or bare wire), waterproof junction box (essential for protecting connectors from moisture), insulating tape, cable gland (or terminal block), earth clamp (if required).

Wall-mounted power supply:
Hardwiring-free: Requires provision of a dedicated waterproof bathroom socket (with splash guard, installed at a height ≥1.5m, away from washbasin/shower area).
Hardwired: Requires provision of wall-mounted wiring (live wire L, neutral wire N, earth wire PE, 3-core cable, cross-section ≥1.5mm²), fitted with a waterproof junction box.

II. Scenario-Specific Wiring Steps (Beginners should opt for ‘no hard-wiring’ first)
Scenario 1: No Hard-Wiring (Plug-in model, no circuit modification required, ideal for beginners)

1. Verify socket compliance: The socket must be IP44-rated or higher (splash-proof with a hinged cover) and properly earthed (three-pin socket with central earth pin). Use a voltage tester to confirm the socket is de-energised.
Organise the mirror's power cable: Neatly arrange the supplied power cable to prevent kinking or compression (consider fitting a protective corrugated conduit to guard against abrasion and leakage).

2. Connect the power supply: Insert the mirror's plug into the waterproof socket. Gently pull the power cord to ensure the plug is securely seated (without wobbling).

3.Connecting the power supply: Insert the mirror plug into the waterproof socket, gently pull the power cord to ensure the plug is securely seated (without wobbling).

4.Securing the wiring: Use cable clips to fix the power cord to the wall (away from water flow areas), preventing it from hanging over the washbasin or on the floor to avoid water contact and tripping hazards.