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Lighting Design, Research

Light and Productivity

Mar 13, 2015

The relationship between lighting and productivity has been the subject of study for almost 100 years, but determining a definitive, quantifiable relationship remains elusive. That was the consensus of a…

Events

Call for Speakers for IES Conference and LightShow West

Mar 12, 2015

The Illuminating Engineering Society is seeking experts to present at the 2015 Annual Conference being held in Indianapolis, Indiana this November 8-10. (This is a call for presentations, not to…

Light + Art, Lighting Industry

IES Year of Light Photo Contest

Mar 12, 2015

To celebrate the UN-designated Year of Light, the Illuminating Engineering Society is holding a photo contest. From IES: Every month we will announce a “Theme of the Month” to which…

Codes + Standards

ASHRAE/IES Publish Updated Standard on Energy Efficiency in Existing Buildings

Mar 11, 2015

A newly revised standard from ASHRAE and IES seeks to provide greater guidance and a more comprehensive approach to retrofit of existing buildings for increased energy efficiency. ANSI/ASHRAE/IES Standard 100-2015,…

LED + SSL

DOE Publishes CALiPER Report on the Robustness of LED PAR38 Lamps

Mar 10, 2015

The U.S. Department of Energy’s CALiPER program has released Report 20.3, which is part of a series of investigations on LED PAR38 lamps. Report 20.3 focuses on an evaluation of…

Products + Technology

Product Monday: Horticultural Luminaires by OSRAM SYLVANIA

Mar 09, 2015

ZELION HL Horticulture LED Grow Light Fixtures provide an LED solution for turf and landscape maintenance, commercial greenhouses and indoor gardening. Available in 25W, 50W, 100W and 150W versions and…

LED + SSL

GATEWAY Demonstration: LED Lighting in a High-Temperature Environment

Mar 06, 2015

Republication of Postings from the U.S. Department of Energy (DOE) Solid-State Lighting Program by Jim Brodrick, SSL Program Manager, U.S. Department of Energy High-flux lighting applications in high-temperature environments present…

Light + Health

Why We Hate Monday Mornings

Mar 05, 2015

This Philips video talks about how our body clock is out of sync with our alarm clock, and how light can reset the body’s clock.

Lighting Design

High-Efficacy Residential Lighting Guide Now Available

Mar 04, 2015

The California Lighting Technology Center has developed the High-Efficacy Residential Lighting Guide to provide information about lighting products and key lighting principles and best practice recommendations. Download the guide here.

LED + SSL

OLED Lighting: Poised to Take Off?

Mar 03, 2015

This interesting presentation by Acuity Brands portrays OLED lighting as rapidly advancing in performance and poised for larger adoption. Check it out here.

Events

BD|NY

New York, NY

November 9 -10, 2025

Canada Light Expo

Toronto, Canada

November 12 - 23, 2025

Light + Building

Frankfurt am Main

March 8 - 13, 2026

LEDucation 2026

New York, NY

April 14 - 15, 2026

ArchLIGHT Summit

Dallas, TX

September 15 -16, 2026

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About

Launched in 2001, LightNOW covers the rapidly changing lighting world for lighting people. Check-in daily to see new posts by Editor David Shiller, Craig DiLouie, and other experts in the lighting field including consultants and lighting designers. Posts include news items to keep you up to date, short opinion pieces to invite you to consider another point of view, new products every Monday, and links to new research and tools to help you design with light. Also be sure to subscribe to the LightNOW newsletter (free), which is published every two weeks as a digest of articles on the site. We always welcome your feedback, so feel free to comment on any of the stories that appear here at LightNOW. If you are a manufacturer, LightNOW offers a low-cost ad vehicle to reach thousands of specifiers, contractors, reps, distributors, consultants, owners, and other stakeholders in the sales channel. For advertising inquiries, contact Suelynn Shiller. Thank you for visiting, and we hope you find LightNOW useful for your career in lighting

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