In the face of the energy crisis, many urban authorities are limiting the lighting of public buildings. The measure is designed to make savings, but also to act as an example to others. To save energy ...

As trivial as the act of flipping a switch and lighting up a room may seem, we've had to come a long way to have safe and reliable light sources. It is estimated that the first lamps were invented ...

Lighting has become much more sophisticated than simply flipping a wall switch. In homes, offices, warehouses, schools, ...