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 ...

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 ...

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, ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In part 1 of this subject, you were introduced to the basic terms and definitions for lighting ...

The definition of light power density. Today's lighting requirements for buildings. How to calculate LPD. Essentially, light power density (LPD) equates to all of the power consumed by light fixtures, ...