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The NRW parliament building in Germany is lit by concentric rings of LED downlights from Hoffmeister Leuchten that contain Fortimo DLM 2000-lm modules from Philips.
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STANDARDS
The elusive “life” of LEDs: How TM-21 contributes to the solution
The newly-introduced TM-21 document presents a method for lumen-depreciation projection based on LM-80 data, enabling LED lifetime extrapolations beyond 6000 hours, says ERIC RICHMAN.
CONFERENCE PREVIEW
Strategies in Light 2012 to highlight LED market dynamics
With the theme of “Navigating the Dynamic LED and Lighting Markets,” the 13th annual Strategies in Light conference will be held in Santa Clara, California, on February 7-9, 2012 writes BOB STEELE.
OPTICAL SAFETY
LED-based products must meet photobiological safety standards: part 2
The potentially complex procedure of evaluating LED photobiological safety is now a legal requirement in Europe, but few countries have yet followed the European mandatory-testing lead. LESLIE LYONS discusses the implementation of the IEC62471 standard after an in-depth look at the measurement of radiance and irradiance.
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COMMENTARY
European focus in a global LED industry
NEWS + VIEWS
- LED highway lighting project in China features a million Cree LEDs
- HB-LED revenue growth will reach nearly 10% in 2011
- Bridgelux raises $15 million
- Cintelliq releases OLED market report
- PennWell acquires The LED Show
- EcoSense closes $13 million funding
- Osram, Acuity make acquisitions
- EPA releases first draft of Energy Star Lamps spec
- China unveils plans for incandescent lamp phase-out
- LUMEN coalition launches website
- DOE consortium publishes LED street-lighting guidelines