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How many lumens for a bedroom? The method by surface area

This article is also available in French: Combien de lumens pour une chambre

27/09/2026 · 1 min read · By the Designix team

How many lumens per m² for a bedroom?

Allow 150 lumens per m² in total, split 60% on the ceiling and 40% in accent lights. A 12 m² bedroom therefore targets 1,800 lumens overall: 1,100 on the ceiling light, 700 around the bed. The figure per square metre only makes sense once this split is set.

How many lumens for your bedroom: the benchmarks by surface area

	Bedroom 10 m²	Bedroom 12 to 14 m²	Bedroom 18 to 20 m²
Total flux to target	about 1,500 lm	about 1,800 to 2,100 lm	about 2,700 to 3,000 lm
Of which general lighting	700 to 900 lm	800 to 1,000 lm	1,000 to 1,500 lm
Of which accent lights	2 × 400 lm	2 × 400 lm	2 to 3 × 400 lm
Colour temperature	2,700 K	2,700 K	2,700 to 3,000 K
Preferred bases	E27 or G9	E27	E27
Dimmability	useful on accent lights	useful everywhere	essential

Surface area	Recommended total	Ceiling light	Accent lights (bedside, reading)
10 m²	1,500 lm	900 lm	600 lm
12 m²	1,800 lm	1,100 lm	700 lm
15 m²	2,250 lm	1,350 lm	900 lm
20 m²	3,000 lm	1,800 lm	1,200 lm

On a survey of 209 references in our bedroom collection as of 27 September 2026, 38% are suspended fittings and 29% are wall mounted. Splitting the light across several sources is not a makeshift solution: it is already what the models offer.

A ceiling light on its own forces you to go up in power, and that power falls vertically onto the pillow. A bedroom light made up of two or three sources lets you lower the general lighting and keep a warm glow near the bed.

To check your totals room by room, add up the lumens of each source before choosing your bedroom light.