How many ceiling recessed lights — and at what spacing?

For residential CEILING recessed lights (kitchen, living room, bedroom…). Enter your room: quantity, spacing, recommended lumens and layout plan — the light circles must overlap for even lighting.

Room length (ft)

Room width (ft)

Ceiling height (ft)

Recessed model

DLS and DLX (40°): the light circles must overlap for even, designer-grade lighting — about one light per ceiling-height of distance, 2.5 ft from the walls. Example: 12 × 12 ft room, 8 ft ceiling → 4 lights, 7 ft apart, 2.5 ft from the walls.

Simple lumen rule for residential ceilings: 8 ft ceiling → about 500 lm per fixture; 9 ft → about 600 lm. This calculator is for residential rooms (kitchen, living room…) — not for high bays on a 20 ft warehouse ceiling.

⚠ DLF (120° flat): lights much wider, so you need FEWER of them — but it floods the room with light and can glare. Not the designer, cozy look for living spaces; keep it for pantries, walk-ins and utility areas.

—Recessed lights

—Layout (rows × cols)

—Spacing

—Recommended / fixture

—Model power

The pale circles show each light's coverage — they overlap for uniformity. General estimate: obstacles, beams and furniture change the plan; send us your layout and we will fine-tune it.

LEDCO models: DLS and DLX = 40° beam; DLF = 120°. White, black and stainless finishes; DLX in 3 or 4 in, round or square.

Recessed 4 in DLS (40°) → Recessed DLX round (40°) → Recessed DLX square (40°) → Recessed 4 in DLF flat (120°) → All LED Ceiling Downlights →