Recessed can lights are all about placement. Enter room size, ceiling height, and how bright you want the space, and get the number of lights plus a practical spacing grid.
Total lumens needed = area x desired foot-candles. Divide by per-light lumens for the fixture count.
Classic rule: keep spacing at or below half the ceiling height for even pools of light.
Sees how wide the beam is at floor level to avoid dark gaps between lights.
All calculations run locally in your browser.
Light it right.