Light
planner.

How many lights does a room need? Choose the room, its size and the fitting — the plan updates as you go. The theory is in lux and lumens by room.

01 · Room

Target 150 lux · Warm 3000K. Warm light helps a room wind down in the evening.

02 · Size
03 · Fitting

Use the lumen figure from the pack or datasheet of the exact model.

04 · Walls & ceiling

You need about

6

LED panels · 2 × 3 grid

Area
144 sq ft
Lumens
4,181
Achieved
215 lux
12 ft12 ft

Lumen method: lumens = lux × area ÷ (utilisation × maintenance 0.8). A starting point for planning — check glare, spacing and the datasheet before you buy.