KelvinPlanHow much light each room needs, and what colour it should be.

Lighting a 8 × 8 ft bedroom

Total light needed
960lumens
64 ft² × 15 foot-candles
Room area64ft²
Target light levelIES guidance for a bedroom15foot-candles
Total lumens960lm
Colour temperaturewarm, low glare2700K
Bulbs (800 lm each)2bulbs
Recessed cans (4 ft spacing)240 lm each4fixtures
Room
bedroom
Width
8 ft
Length
8 ft

Where 960 lumens comes from

Lighting is specified in foot-candles — lumens landing on each square foot of the surface you care about. A bedroom is worked to 15 foot-candles. Across 64 ft² that is 960 lumens in total.

Split it up

One fixture putting out 960 lumens and 4 fixtures adding up to the same number light a room very differently. A single source throws hard shadows and glare; several spread the light and make the room feel larger. Aim for layers — ambient, task, and something low for the evening.

Colour temperature

2700K suits this room. Warmer light reads as relaxed and is what you want where people wind down; cooler light keeps edges and colours crisp, which matters where there is work to do.

Notes

  • Foot-candles are lumens per square foot at the work surface. Ceilings above 9 ft, dark walls or dark flooring all eat light — add roughly 10% per extra foot of ceiling height.
  • Spread the total across several fixtures rather than one bright source. One 960 lm fixture and 4 smaller ones add up the same but look completely different.

Nearby sizes