Pick Downlights by Glare, Not Just Lumens: Deep-Set Beats Pancake

The Problem

The standard renovation move is a grid of flat "pancake" LED downlights, one per square meter. They're cheap, thin enough to fit anywhere, and their diffused faces glow in every direction — which is exactly the problem. A diffused disc in the ceiling is glare: your eyes are pulled to the brightest thing in view, and in a pancake-lit room the brightest thing is always the fixtures, not whatever you're trying to see.

The Main Types and When to Use Them

A lighting designer's side-by-side of what to look for:

Diffused pancake downlights. The flat disc with a glowing face. Bright, cheap, easy to install — and glary from every angle; even viewed obliquely the source blasts your eyes. Their designer's blunt verdict: nothing wins him over to putting one in a home ceiling.

Deep-set low-glare downlights. The light source sits well up inside the housing, behind a reflector, with the fixture body shielding your eyes from the source at normal viewing angles. Looking at the lit fixture, you can barely see inside it — the light lands on the task below, not in your face.

Baffled downlights. One step further: a black baffle ring inside the fixture kills the remaining glare. Some people dislike the black-ring aesthetic, but the effect is light that appears on surfaces as if from nowhere — your attention goes to the room, not the ceiling.

The placement rule that rides along: don't grid them. Put downlights where you need functional light — over the counter, the reading chair, the sink — and let the rest of the room be lit by what those surfaces reflect and by other layers of light.