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 ...

Electrical professionals have long observed the “underloading” of customer-owned transformers, which, in part, is brought about by National Electrical Code (NEC) Chapter 2 design demand rules. This ...

Facility and building lighting design is a technically complex and fundamental component of building construction requiring mastery of varied and rapidly evolving product technologies. A knowledgeable ...

Joel Spahn is a Software Developer for Lighting Analysts, Inc. and Lead Developer of ElumTools, a lighting calculation add-in for Autodesk® Revit®. He is also author of Lighting Analysts’ Flash-based ...