Craig DiLouie

Lighting Columnist

Craig DiLouie is a journalist and educator specializing in the lighting industry. Learn more at and​

Articles by Craig DiLouie

September 2014
Lighting controls are devices and systems that regulate the output of lamps and luminaires. They either turn the lights on and off using a switch or adjust light output using a dimmer. Growing demands for energy savings and flexibility to support visual needs have given lighting control much greater prominence. READ MORE
August 2014
ASHRAE/IES 90.1 2010, the national energy reference standard, requires building exterior lighting to be turned off and/or reduced when not in use. The goal is to save energy by ensuring exterior lighting is only used when needed; lights that are required to remain on for security after normal business hours must be dimmed. READ MORE
July 2014
Landscape lighting is one of the most artistic lighting design disciplines. Its primary purpose is ambience—to make nighttime spaces aesthetic and inviting. On a more practical level, it can extend the usable hours of a site, facilitate wayfinding, improve safety and provide a sense of security.
June 2014
Craig Bernecker, Ph.D., director, Lighting Education Institute and professor at Parsons The New School for Design, recently gave a talk as part of the ongoing Philips Lighting University series of webinars. The webinar, “Lighting and Well Being: Illustrations of Psychological and Physiological Effects,” is available for free viewing at 
May 2014
The U.S. Department of Energy (DOE) recently issued three reports that provide a snapshot of several light-emitting diode (LED) lighting markets and estimate potential energy savings for full adoption.
April 2014
At the Greenbuild conference in November 2013, the U.S. Green Building Council (USGBC) released the fourth generation of the Leadership in Energy and Environmental Design (LEED) green building rating system. LEED v4 represents a major update, including notable changes affecting lighting design and selection.
  • Manufacturers are focusing on developing decorative, sculptural OLED creations, such as Osram Sylvania's Rollercoaster luminaire.
April 2014
The organic light-emitting diode (OLED) is one of the lighting industry’s most exciting technologies. It offers extraordinary energy-saving potential, while enabling unique user experiences. However, its development is about seven years behind its popular cousin, the LED, and significant technical advances must occur before broader adoption is possible.
 The promise of OLED
March 2014
ASHRAE/IES Standard 90.1 provides states and other jurisdictions a model commercial building energy code. The Department of Energy recognizes the 2010 version as the national energy reference standard, and the International Energy Conservation Code recognizes 90.1 as an alternate compliance standard.
February 2014
In late 2012, the California Energy Commission (CEC) published a voluntary specification recognizing quality light-emitting diode (LED) lamps intended to replace screwbase incandescent lamps in luminaires. Called the Quality LED Lamp Specification (QLS), it covers a range of omnidirectional and directional (spot and flood) lamps.