How to install a ceiling light: step-by-step method

Measure the ceiling height, then identify the type of surface: concrete slab, plasterboard or wood panelling. A pendant light is set 70 or 80 cm above a table, a ceiling light at 2.10 m from the floor. The mounting method is decided before drilling, never after.

Which mounting to choose: pendant, ceiling light or chandelier?

A ceiling light illuminates widely and sits flush with the ceiling. A pendant light hangs down to mark a specific area: a table, an island, a reading nook. A chandelier dresses high ceilings. Two criteria decide: the room's clear height and its actual use. Our selection of ceiling lights covers all three families.

At what height should a ceiling light be hung depending on the room?

Allow 70 to 80 cm between the bottom of the shade and the tabletop or worktop. In a hallway, an entrance or the centre of a living room, aim for 2.10 m from the floor so an adult can walk without ducking.

Above a table, a pendant light set at 75 cm becomes the room's landmark: it sets the style before the furniture.

In a dining room, a dining room chandelier takes on the volume and hangs lower. In an open-plan living space, it gives the room its scale.

Low or sloped ceiling: how to compensate?

Below 2.30 m, forget long pendants: a slim ceiling light or a very short pendant keeps the room airy. The clearance under the shade should not drop below 2.10 m.

Under a slope, the rod is fixed on the high side and the shade hangs vertically, the only way to avoid a crooked pendant. This case is detailed in hanging a light under a sloped ceiling.

For a bedroom or a room of 2.40 m, better to calculate before buying: the guidelines for choosing a chandelier according to ceiling height save a trip back to the store.

How to install a ceiling light, step by step?

Switch off the breaker, locate the electrical supply, fix the bracket into the ceiling material, connect, then adjust the height before tightening. Three actions determine the result: locating, fixing, adjusting. The rest is about careful finishing.

Cut the power and locate the electrical supply

Switch off the breaker for the lighting circuit, then check for absence of voltage before touching the wires. Locate the cable outlet and note its position: the new light will be centred there, not in the middle of the room.

Fix the bracket: DCL box, hook, screws

A DCL box is screwed into a recess or onto the slab, terminal block facing down. It simplifies connection and keeps the wires out of reach. The full method is in installing a light on a DCL box.

On a heavy light, the weight never rests on the terminal block screw: the hook or anchor takes the load. The step-by-step is described for hanging a chandelier on a hook.

Plasterboard, solid concrete or wood panelling: the fixing is decided before the first drill hole, and doubts are quickly resolved. The team answers live from Vaulx-en-Velin, you can contact the Designix team before drilling.

Adjust the height before tightening

Loosen the rod collar, slide the cable, tighten only when the level is right. Adjust with the power off, with two people if the shade is wide. The technique is detailed for adjusting the height of a pendant.

Once the height is set, cut the excess cable, never flush with the terminal block. Keep two or three centimetres of slack: they will allow you to lower the pendant again without dismantling everything.

How to wire a pendant light?

Identify the live, neutral and earth before screwing anything. Then connect in the terminal block respecting the colours, and never cut the earth wire. The action is simple, mistakes are costly: wiring a ceiling light is prepared before you have both hands in the air.

Identify live, neutral and earth before screwing

Earth is green and yellow, neutral is blue, live is another colour, often red, brown or black. Without a reliable marker, a voltage tester settles it in seconds.

• Earth (green and yellow): always connect to the designated terminal block
• Neutral (blue): to the light's neutral terminal
• Live: to the terminal marked L, the one the switch cuts
• Earth wire: never cut, never left bare in the box

A wire too short: what to do?

A wire that is too short cannot be extended with a connector block placed high up: the connection must fit in the box and remain accessible. A poorly tightened splice heats up and loosens with vibrations. If in doubt, the after-sales service indicates the solution suited to your configuration.

How to hang a ceiling light without drilling?

A lightweight light can be held on an adhesive rail or a self-supporting hook slipped into an existing recess. Beyond a few kilos, the adhesive gives way: you need to drill or reuse an anchoring point already in place. The actual weight, shade included, decides. The solutions are compared in fixing a ceiling light without drilling.

• Structural adhesive: for a lightweight light, on a smooth, degreased surface
• Self-supporting hook: in a plasterboard recess, without touching the slab
• Magnetic rail: when a power supply already exists on the ceiling
• Existing anchoring point: the safest solution, to be reused

How to install a light without an electrical supply on the ceiling?

Without a power supply, the light runs on battery, with a built-in switch or remote control. This is the cleanest option in a rented hallway or a room without a ceiling light point. The constraint remains recharging, to be planned every two or three months depending on use.

Does the wireless two-way switch change anything?

A wireless two-way switch adds a box behind the light and standalone switches stuck to the wall. Installation is done without chasing the walls, but the limits are real and you need to know them before buying.

• Installation: a few minutes, no trench or chasing
• Power: battery, to be monitored
• Range: reduced by load-bearing walls and concrete slabs
• Limitation: no control possible when the battery dies

What our catalogue says about ceiling lights

From a survey of 30 references in our catalogue as of 1 October 2026, 57% declare a 5-year warranty and 83% an IP20 protection rating. The GU10 base leads on 57% of the survey, recessed mounting also on 57%, and CE certification on 100% of the sheets.

Which bases and mountings dominate?

Still on these 30 references, E27 appears on 33% of the survey, E14 on 7% and integrated LED on 3%. Pendant appears on 13%, wall and surface-mounted on 3% each. A GU10 ceiling light or a recessed panel therefore covers most of a home's needs. Our LED ceiling light gathers the models with integrated LED, with no bulb to change.

Which warranty for which use?

On the same survey, 43% of the sheets declare a two-year warranty. The rooms cited are the living room on 73% of the sheets, the hallway on 60%, the bedroom on 20% and the kitchen on 17%, a sheet possibly mentioning several. In a kitchen, a kitchen pendant left on for long periods benefits from being chosen with the long warranty.

The modern style dominates on 33% of the survey, the colour black on 37%, the round shape on 70%. These shares do not add up to one hundred, as a sheet may combine several mentions. Our selection of ceiling lights is read by colour and shape: black, white, round, globe.

For confidence, nothing replaces a direct check: the Designix Google listing shows its rating and number of reviews updated continuously.