Modern building-services technology stands for efficient energy usage, individual improvements in the levels of comfort and convenience, as well as all-round safety and security. Lighting is an elementary building block of the built-up world. It not only sets visual accents and, under ideal circumstances, combines aesthetically with the architecture but also provides functional benefits. Light + Building in Frankfurt, Germany, from 3 to 8 March 2024 covers the spectrum from intelligent lighting technology to future-oriented home and building technology.