How much energy is saved when a building uses lighting controls? The typical answer is the ever-present lighting term, “It depends.” Research, however, is suggestive: Space Type Controls Type Lighting Energy Savings Demonstrated in Research or Estimated as Potential Study Reference Private Office Occupancy sensor 38% An Analysis of the Energy and Cost Savings Potential [...]

The Illuminating Engineering Society has published PS-03-10, a position statement covering “Effects of Exterior Lighting on Human Health.” The statement includes the following salient points: “TM-18 represents the position of the IES on the known relationships between optical radiation and human health.” “The position of the IES is that typical exposures to exterior lighting after [...]

Cleantech Approach (CTA) has published a new research report: Lighting Controls: Savings, Solutions, Payback, and Vendor Profiles, reviewing lighting control solutions and ROI associated their deployment. The report finds that commercial offices can reduce electricity consumption by 35-55% with the implementation of a lighting control solution and deliver an ROI within 2-10 years, depending on [...]

The Wall Street Journal also reported today that light is increasingly being used to diagnose and monitor diseases such as diabetes, highly desirable because it is non-invasive. Light is already used for eye surgery, dental work, cosmetic skin work, combating SAD, hair transplantation and other uses. Get the story here.

A Frost & Sullivan research report, titled European Energy Efficient Lighting Markets, provides an in-depth analysis of the competitive landscape while detailing key market and geographic trends in the European energy-efficient lighting market, focusing on CFLs, LEDs and halogen lamps in the commercial, residential, public and industrial sectors. Click here to learn more.

NOTE: The bad link at the bottom has been fixed. The Lighting Research Center‘s DELTA program recently field tested photovoltaic-powered LED luminaires installed at three public, outdoor sites in the Catskill Mountains region of upstate New York. The luminaires were prototypes designed by Sullivan Renaissance, Philips Hadco and SolarOne Solutions. Click here to learn the [...]

LED technology continues to rapidly mature and is pursued as a street lighting alternative to traditional lamp sources categorized as HID lamps such as high pressure sodium. In order to quantify the performance of new LED street lighting options, lighting specifiers must compare the claimed benefits of LED fixtures, including long life, reduced maintenance, and [...]

The California Lighting Technology Center (CLTC) recently demonstrated Philips Day-Brite NiteBrites HID wall packs at California State University, Chico. The demonstration included replacing 13 150W high pressure sodium wall packs and one 70W HPS tall wall pack with 14 new bi-level HID fixtures at Shasta and Lassen halls. The retrofit increased light levels of the [...]

The Alliance for Solid-State Illumination and Technologies (ASSIST) recently published a technical paper that quantitatively evaluates the impact that outdoor lighting has on the human circadian system. A growing interest in the role that light plays on human health, combined with the increasing use of white outdoor lighting with high correlated color temperatures and a [...]