Guide Eclairage

Lighting every room well: the guide to perfect lighting

This article is also available in French: Comment Trouver l'Éclairage parfait pour Votre Intérieur

08/01/2024 · 6 min read · By the Designix team
Lighting every room well: the guide to perfect lighting

Plan for three light sources at different heights in each room: a ceiling light or spotlights, a table lamp, a wall light or a floor lamp. Set the temperature from 2700 K for relaxation to 4000 K for precise tasks, and aim for a total lumen count suited to the surface rather than a single central point on the ceiling.

What are the tips for lighting the inside of a house?

Layer three lighting functions: general lighting that sets the base level, ambient lighting that softens, and accent lighting that highlights a wall or an object. A single source on the ceiling hardens shadows and strains the eyes. Multiply the points, not the power.

General, ambient and accent lighting

General lighting comes down from the ceiling (ceiling light, spotlights). It is complemented by ambient lighting from table lamps and wall lights, at eye level.

The third layer is used to highlight an object: a directional spotlight on a bookcase, a painting, a plant. It is this layer that gives the room depth.

How do you choose your indoor lighting, room by room?

Start from the use, not the fixture. A kitchen calls for crisp light on the worktop; a bedroom, low and enveloping light. To cover every case, our lighting collection covers the living room, kitchen, bedroom and bathroom with the appropriate protection ratings.

Which lighting for which room: the key benchmarks

Living room Kitchen Bedroom Bathroom
Recommended temperature 2700–3000 K (warm) 3000–4000 K (neutral) 2700 K (very warm) 3000–4000 K (neutral)
Indicative lumens 2500–4000 lm 3500–5000 lm 1500–2500 lm 2000–4000 lm
Dominant layer Ambient + general Functional (worktop) Soft ambient Functional (mirror)
Ingress protection rating IP20 IP20 (IP44 near the sink) IP20 IP44 to IP65

What gives the most light, warm white or cool white?

At equal lumens, cool white (4000 to 6500 K) looks brighter because it renders contrasts; warm white (2700 to 3000 K) lights just as much but seems softer. It is not the colour that doses the quantity of light, it is the lumens. The temperature sets the mood.

Which colour temperature for each room?

Allow 2700 K in the living room and bedroom for relaxation, 3000 K in the dining room, 4000 K in the kitchen and office to work without straining. In the bathroom, 4000 K in front of the mirror and 3000 K in the rest of the room give a good balance.

White or yellow light: how do you decide?

A restful room benefits from warm yellow, a task area from neutral white. To decide without getting it wrong, this detailed comparison helps you choose between white or yellow light depending on the activity. A dimmer lets you switch from one register to the other in the same room.

How do you find the perfect lighting for your home, room by room?

Add up the lumens per surface, then spread them over at least three sources. Allow around 100 to 150 lumens per m² in the living room, 300 in the kitchen and on worktops, 100 in the bedroom. Then choose the protection rating according to the room's humidity.

How many lumens for a living room and a dining room?

For a 20 m² living room, aim for 2000 to 3000 combined lumens, never concentrated in one point. Above the table, a pendant light placed 70-85 cm from the surface frames the light without dazzling the guests.

To set your figures room by room, this method for calculating the required lighting gives the detail of the calculation per m². A well-divided living area is also arranged by following the benchmarks for lighting your living room effectively.

What bulb wattage for the kitchen?

In the kitchen, allow 300 lumens per m² and reinforce the worktop with task lighting under the cabinets, at 4000 K. Precise tasks (chopping, cooking) need crisp light with no cast shadow.

The classic mistakes and the right spotlight positions are detailed in our advice for getting kitchen lighting right.

How many lumens for a bedroom and which IP in the bathroom?

In the bedroom, stay low: 100 lumens per m² in general and two dimmable bedside reading lights. The choice of model depends on space and style, as this guide on which light fixture for the bedroom shows.

The bathroom dictates the protection rating. On a survey of 250 light fixtures from our catalogue as of 23 September 2026, 94% are IP20 (dry interior) and 4% are IP65: reserve the latter for zones close to the shower, and IP44 for the area around the washbasin.

Once your lighting plan is set room by room, you can review it with an advisor before buying to confirm lumens, temperature and protection rating.

Which room do you want to light first?

What are the tricks for lighting a room?

Avoid three costly mistakes: relying entirely on the ceiling, keeping a single temperature everywhere, and neglecting the protection rating in a damp room. Add a dimmer, alternate the heights of your sources, and favour LED, which uses less and lasts longer.

The mistakes that cost dearly

A ceiling light alone flattens the volume and multiplies shadow zones. Uniform light that is too cool makes a living room feel cold; too warm, it darkens a kitchen. An IP20 placed near a shower ages quickly and becomes a risk.

Choosing your bulbs and sockets well

Check the socket before buying: on the same survey of 250 references, E27 comes out at 29%, E14 at 12%, GU10 at 10%. To avoid the wrong format or the wrong rendering, this guide for choosing your bulbs covers each socket.

On reliability, 78% of the same survey carries the LED mention, 96% is guaranteed for 2 years and 100% is CE certified. If you are still hesitating, buyer reviews on the Designix Google listing help you decide.

Your lighting plan in 6 points

  • Plan at least 3 sources at different heights in each room
  • Adapt the temperature: 2700 K to relax, 4000 K to work
  • Calculate the combined lumens according to the surface, not a single central point
  • Check the protection rating: IP20 in dry rooms, IP44/IP65 in the bathroom
  • Check the socket (E27, E14, GU10) before buying the bulb
  • Add a dimmer where the mood should change with the moment

Your questions about indoor lighting

What are the tips for lighting the inside of a house?
Layer three layers: general lighting (ceiling light, pendant), ambient lighting (table lamps, wall lights) and accent lighting (spotlights, strips). Multiply the sources at different heights rather than a single point on the ceiling.
What gives the most light, warm white or cool white?
At equal power (in lumens), the perceived rendering differs: cool white (4000 K and above) looks brighter and lights better for working, warm white (2700 K) is softer and more welcoming. It is the lumens that give the quantity of light, not the colour.
What are the tricks for lighting a room?
Avoid a single ceiling light: spread the light over several points, mix the heights, add a dimmer, and adapt the temperature to the use of the room. Reserve neutral white for work areas and warm white for relaxation spaces.
Which LED bulb does not hurt the eyes?
Favour a flicker-free LED, with a high colour rendering index (CRI) and a temperature suited to the room. A dimmer and a diffusing shade also reduce direct glare.

Our selection criteria

  • warranty 2 years on 96% of the selection
  • certification CE on 100% of the selection
  • material Metal on 88% of the selection
  • technology LED on 78% of the selection

On the same subject

The right advice, at the right time

Ready to turn inspiration into reality?

Tell us about your room, your style and your budget, and we will show you the pieces that truly suit your project.

Get guidance in 30 seconds →
The Designix team

Design lighting specialists. Over 5,000 homes fitted with our advice, and a showroom in Lyon to help you choose.

A question before you buy? Our team is here to help: +33 6 62 65 17 72 · support@designix.fr

Share f P @

Get our lighting tips

Inspiration, new arrivals and lighting tips, once a week in your inbox.