The US Department of Energy (DOE) has published new research that is based on analysis of LM-80 testing datasets of 223 separate packaged LEDs to discern component behaviour over time relative to lumen maintenance and to chromaticity shift. The analysis considers four different package types that generally correspond to what we would call mid-power, high-power, chip-on-board (COB), and chip-scale package (CSP) LEDs. The analysis reveals relatively predictable and acceptable lumen maintenance performance for all LED types but vastly different chromaticity shift characteristics — data that can be vital to solid-state lighting (SSL) manufacturers, lighting designers/specifiers, and others.

The White Building, part of the prestigious Notting Dale Campus in West London, has been illuminated with TECTON and RESCLITE luminaires and controls from Zumtobel Lighting to ensure a high quality lighting solution with low total cost of ownership for the ‘Very Good’ BREAAM rated refurbishment. The luminaires were chosen for their ability to address the exacting design criteria and provide virtually unlimited flexibility.

The International Association of Lighting Designers (IALD) recently announced 21 winners of the 37th Annual IALD International Lighting Design Awards, presented by Cooper Lighting Solutions. Top honours went to Arup UK for The University of Sheffield Concourse in Sheffield, England UK (see image), which received the IALD Radiance Award for Excellence in Lighting Design award.

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