It’s no secret that lighting designers must wear many hats, but according to the Illuminating Engineering Society of North America (IESNA), the actual number of those hats might surprise you. A review ...

Determining the light levels in your shop is an important part of ensuring that your customers have a pleasant shopping experience. If you have limited natural light or operate at night, you can ...

As lighting installations in office buildings and other facilities continue to become more complex, designers must address ambient, task, and security illumination solutions separately. Why? When you ...

In part 1 of this subject, you were introduced to the basic terms and definitions for lighting calculations. It was suggested that you refer to them by their units rather than the confusing academic ...

In the past, using lighting-calculation software has been frustrating — programs were time-consuming, keystroke-dependent and hard to master. Users were often restricted to designing simple, ...