Domakihub How to Wire a Light Fitting: A Clear Guide for Homeowners
Understand what the electrician does, how to prepare, and when you must call one.
Reviewed by Domakihub home & decor pros · 2026-06-23 · 5 min read
Changing a light fitting — swapping an old ceiling rose and pendant for a modern fixture — is one of the most common electrical jobs in Greek homes, holiday rentals, and hotels. The video above walks through the physical process of replacing a pendant; this guide explains how the wiring works, what a qualified electrician does at each stage, and how to prepare the job so it goes smoothly and safely. In Greece, connection to the mains supply must be carried out by a licensed electrician (ηλεκτρολόγος), who will also issue the required compliance certificate for rental properties.
Why Mains Electrical Work Needs a Licensed Electrician in Greece
In Greece, electrical installations are governed by ELOT HD 384 (the national standard based on IEC 60364). Any work that involves opening a live junction box, touching cable terminals, or modifying a circuit must be performed — and signed off — by a registered electrician. For holiday rental properties, a current electrical certificate (Υπεύθυνη Δήλωση Εγκαταστάτη) is legally required, and faulty DIY wiring can void your property insurance.
That said, understanding how the job works helps you have an informed conversation with your electrician, choose the right fitting for the existing wiring, and spot if something looks wrong before you sign off on the work.
How a Lighting Circuit Works
Most Greek residential properties use a simple loop-in or junction-box lighting circuit. Power runs from the consumer unit (πίνακας διανομής) along a live, neutral, and earth conductor. At each ceiling rose or junction box, the circuit loops in and out, with a switched live dropping down to the wall switch and back. Understanding this layout tells you why the ceiling rose contains several groups of terminals — it is a junction point, not just a connector for one fitting.
Modern fittings — pendant lights, flush ceiling lights, downlighters — replace the old rose entirely. The electrician transfers the same conductors (live, neutral, earth, and switched live) from the old terminals to the connector block inside the new fitting's canopy, then secures the fixture to the ceiling backplate.
What Your Electrician Does: The 5 Key Steps
- 1
Isolate and prove the circuit dead
The electrician switches off the correct breaker at the consumer unit and uses a non-contact voltage tester or approved two-pole tester to confirm all conductors at the rose are dead. This step is non-negotiable — a circuit that 'looks off' at the switch can still carry a live feed from another loop.
- 2
Remove the old ceiling rose and identify the conductors
The old rose cover is unscrewed and the terminal block exposed. In Greek homes you will typically see three-core flat cable (phase, neutral, earth) plus a switching wire returning from the wall plate. The electrician notes which terminals each conductor sits in before disconnecting anything — a quick photo is standard practice.
- 3
Thread cables into the new fitting and secure the backplate
The new fitting's canopy or backplate is offered up to the ceiling. Cables are threaded through the entry grommet or strain-relief clamp. If the new fitting is heavier than the old rose (chandelier, fan-light combination), a proper ceiling anchor rated for the load must be fixed into a joist or with a toggle bolt rated for plasterboard.
- 4
Connect terminals in the correct order
Earth goes first — into the earth terminal of the connector block (or the fitting body if it is Class I metal). Neutral connects next. Switched live (the conductor that carries current only when the switch is on) connects to the lamp terminal. The permanent live feeds back into the loop terminal alongside the neutrals. All conductors are pushed fully home so no bare copper is exposed, and each screw is tightened firmly.
- 5
Test, restore power, and verify
With the canopy closed and the fitting mounted, the electrician restores the breaker, tests the switch operation, and checks for any sign of buzzing, flickering, or tripped protection. For a rental property they will then complete the compliance declaration. You should confirm the fitting type (LED, fluorescent, halogen) matches the driver or ballast specified, and that the lamp wattage does not exceed the fitting's rating marked on the label.
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FAQ
- Can I replace a light fitting myself in Greece without an electrician?
- You may physically remove an old rose and mount a new fitting if you are confident in your abilities and the power is fully isolated. However, Greek law and ELOT HD 384 require a licensed electrician to verify, connect, and certify any mains-connected installation. For rental properties the certificate is a legal obligation, so engaging a qualified ηλεκτρολόγος is both safer and legally necessary.
- How do I know which wire is live, neutral, and earth in a Greek ceiling rose?
- Greek wiring follows the European colour code: brown (or old red) = phase/live, blue (or old black/grey) = neutral, green-yellow = earth. In older properties colours may not match at all — this is exactly why a qualified electrician with a tester, not colour alone, must identify each conductor before connecting anything.
- What should I check before buying a new light fitting for a Greek property?
- First confirm the fitting carries a CE mark and is rated for the ambient temperature of the room (bathrooms need an IP rating of at least IP44). Check whether the fitting is Class I (earthed metal body, needs an earth conductor) or Class II (double-insulated, no earth needed). Also measure the ceiling backplate of the old rose — most standard Greek roses are 75–100 mm in diameter — so the new canopy covers the old hole cleanly.