Led Luminaries

Cree is to install 32,000 LED streetlights in Detroit as part of the city’s three-year $185m re-lighting programme. “Lighting is at the heart of city infrastructure – affecting everything from quality of life and jobs to operations and commuter safety, while also improving visibility and performance of other safety systems,” said Cree, which estimates that its XSP luminaires will save ...

Cree has upped the power of its 5x5mm leds as it introduces the XHP50.2 range with up to 7% more lumens and 10% higher efficacy (see table below) compared with first generation XHP50. 2,500 lm is available from the 6mm (equiv dia) light emitting surface. “XHP50.2 LED has LM-80 data available immediately, reducing the time required to receive ENERGY STAR ...

V-Tac has lunached ‘Nano-Plastic’ T8 LED lighting tubes with A++ efficiency The tubes are available in 60, 120 or 150cm lengths and are GS approved. A ‘Nano-Plastic’ shell is claimed to allowing for better light transmittance “With a shell less than 0.5mm thick, the light emitted is softer and spreads more evenly, diffusing any glare, while the internal convection holes ...

Verbatim used LuxLive in London to launch anti-glare AR111 retrofit LED bulbs and demonstrate a new range of linear LED products. Low glare is the big marketing point. “To avoid the uncomfortable glare, the lamps mimic the lighting effect of a traditional halogen lamp by emitting light indirectly via the reflector,” said the firm, which is claiming CRI >90 for the ...

Cree has created a 3,000K version of its IG Series of luminaires for vehicle parking, and has added 0-10V dimming as a standard feature. The light use waveguides to spread where it is wanted, which Cree brands WaveMax. for low glare, little light is emitted outside +/-50 downwards – see the data sheet. “Parking structure operators are under constant pressure ...

Shining 670nm red light on bees could ameliorate damage caused by neonicotinoid insecticides, according University College London and the strangely named university City, University of London. “The researchers found that when shining a specific wavelength of red light (670nm) it significantly reduced bee death rates and improved cell energy levels, mobility and visual function in animals exposed to neonicotinoid pesticides such ...

New research by scientists from the University of Bristol has revealed that domestic LED lights are much less attractive to nuisance insects such as biting midges than traditional filament lamps. The study, funded by the Natural Environment Research Council and UK lighting manufacturer Integral LED, used customised illuminated insect traps at 18 field test sites across south-west England, lit by ...

Plessey will exhibit the first standard LED module based on its Stellar beam forming technology at electronica . According to prelimiary data, the Orion PLWS3000 module is only 5.6mm thick but achieves a beam angle of +/-12.5°. The module is 82mm in diameter and has a hermal resistance of 1°C/W. “The greatly reduced form factor eliminates design constraints providing lighting designers with ...

Harvard Technology, which manufactures in the UK, will be exhibiting its latest range of products at LUX Live on stand K2. It will unveil programmable LED drivers, the latest addition to its CoolLED range, and be showing the recently launched Gen III Elite, Pro and Classic light engines. Also on display will be the newly updated EyeNut Combined Emergency Driver. A ...

St. Peter’s Square in Rome is now consuming ~70% less energy following a conversion to LED lighitng, by Osram. The project was conceived concept by the Direzione dei Servizi Tecnici del Governatorato dello Stato della Città del Vaticano, the same organisation that with Osram converted the Sistine Chapel to leds whose spectrum was deigned to get the correct apparent colour ...