Craig DiLouie

Lighting Columnist

Craig DiLouie, a lighting industry journalist, analyst and marketing consultant, is principal of ZING Communications. He can be reached at

Articles by Craig DiLouie

July 2011
The LED revolution continues to promise many lighting benefits, such as compact size, energy efficiency, long service life with long mean time between failures, no mercury disposal, a resistance to shock and vibration, and no radiated heat or UV output. READ MORE
June 2011
Significant innovation in linear fluorescent lighting is being spurred on by commercial building energy codes, sustainability initiatives, new legislation and regulations, customer demands and competition from other light sources, such as light-emitting diodes (LEDs). Commercial building energy codes are growing more restrictive and increasingly mandate lighting controls. READ MORE
June 2011
The use of Ambient/task lighting is a lighting design approach that combines a direct/indirect general lighting layer and a task lighting layer. The general lighting layer provides low-level ambient illumination, and the task lighting layer provides higher light levels required to complete critical visual tasks. READ MORE
May 2011
The current focus on saving energy is accelerating demand for luminaires, or lighting fixtures, designed to achieve a high level of energy efficiency. READ MORE
April 2011
Some industry observers have predicted that solid-state lighting technology (SSL) will satisfy most lighting applications by the end of the decade. One particular SSL technology on the cusp of commercialization has the potential to be transformational: the organic light-emitting diode (OLED). READ MORE
April 2011
The creators of the ASHRAE/IES 90.1 energy standard set an aggressive goal for the 2010 version, published in November 2010: 30 percent energy savings over the 2004 version. According to a detailed analysis conducted by the Department of Energy, they hit it. READ MORE
March 2011
A new national energy standard took effect on Dec. 30, 2010. On that day, all states had to certify to the U.S. Department of Energy (DOE) that they had a commercial building energy code in place at least as stringent as ASHRAE/IES 90.1 2004 or justify why they could not comply. The new standard supersedes ASHRAE/IES 90.1 1999, recognized as the national energy standard since 2004. READ MORE
February 2011
Energy standards implemented by the Department of Energy (DOE) and the Energy Policy Act of 2005 largely eliminated the manufacture and importation of fluorescent T12 magnetic ballasts in 2010, and new DOE standards will eliminate many popular 4- and 8-foot T12 lamps in 2012. READ MORE
February 2011
Lighting ordinances enacted across the United States in recent years have sought to reduce light pollution, such as skyglow, which is light emitted into the sky that obscures a view of the stars, and light trespass, which is light emitted onto neighboring properties. READ MORE