IKEA Trådfri

LEDs can't truly dim low. Here's the physics — and the surprising fix that has nothing to do with blue light.

Smart bulbs cram radios into metal cages. Integrated fixtures solve that—and Matter makes it seamless.

RGB bulbs go dim in red mode. Here's the physics, the fix, and what to actually buy.

Cheap bulbs aren't the whole story — physics limits how bright color LEDs can get. Here's what to buy instead.

The "mesh" promise fails when you hit the coordinator bottleneck. Here's why multiple hubs don't work like Wi-Fi.