Led Luminaries

Cree LED has up-graded its 1.6 x 2.05mm lens-less XE-G led family, claiming a 20% increase in efficiency for RGBW systems, and a 10% or higher efficiency gain for 13 of the 18 available colors. These devices are intended to be packed closely under colour-mixing optical systems. As such, the gap between emissive surface and package edge is kept small ...

Cree LED is aiming at portable lighting with a 16,500 lumen multi-die LED in a 10 x 10mm package with a 9mm primary lens (right). Called XFL10K, it has two cousins: the 14,247 lm XFL08K which comes in the same package, but with an 8.5mm lens, and the 7 x 7mm 8,335 lm XFL05K with a 6mm lens. These are ...

Contractors picked Luceco luminaires on behalf of Bolton Arena Sports Village to upgrade the 15-year-old lighting in its giant Tennis Halls. “This presented us with a great opportunity to both look for an energy-saving solution as well as an upgrade to the quality of the lighting,” said Bolton Arena operations manager Simon Sharrock. Out went fluorescent lighting and in came ...

Cree has been experimenting with tuneable white luminaires, and has published its findings in a couple of useful application notes. XLamp XD16 premium white color-tunable LED arrays reference design 3-channel white tunable 1000 lm 4” downlight reference design One conclusion in both cases is that three-channel colour mixing achieves a wider colour temperature range for any given maximum deviation below ...

Luceco has provided led luminaires for London’s Lee Valley Ice Centre – the skating venue for this seasons Dancing on Ice masterclass with Torvill and Dean. Heading the list of luminaires installed is  the dimmable Callisto, a linear surface-mounted unit intended to provide 100,000 hours of maintenance free operation and 135 lm/W efficacy, with variants outputting between 11,000 and 32,000 lm. ...

Cree has released preliminary data on the lens-less ‘high intensity’ (HI) variant of its recently introduced XPG-4 leds (3A 10W 3.3 x 3.3mm). “A first in the XPG series, this version promises unparalleled candela and throw for the most demanding lighting needs,” according to component distributor Cutter Electronics, which will be stocking the parts – and pointed out that the ...

Glamox of Norway is to provide LED lighting for 176 wind turbines in the Coastal Virginia Offshore Wind (CVOW) project, which will be the largest offshore wind farm in the US. 2,850 of its MIR G2 WOF water-tight stainless-steel linear LED luminaires will be fitted to the exterior and interior of the wind turbine transition pieces – the part that ...

“Car headlights should be better regulated to reduce the dazzle they cause on-coming drivers”, according to a report produced by Scottish charity Lightaware. Called ‘Modern vehicle headlights dazzle drivers and may compromise road safety’, it highlights the extra-sharp sharp angular transition between the brightest part and the dim ‘cut-off’ of dipped headlight beams made possible by technologies such as LED ...

Gaggione has introduced a number of wall-washing lenses – intended to evenly illuminate walls and pictures from the top – for a variety of leds including, for the LLW59A, RGBW multi-die types. In each case, they are designed to be positioned pointing vertically downward, spaced away from the wall by one third of the height of the wall. For the ...

Cree LED has added higher efficiency high colour rendering index versions to its XHP35.2 leds, and introduced leds optimised to dim evenly when used in parallel The company has used its latest phosphor fill technology between the led die for improved optical performance. Optimised for indoor directional lighting, “Pro9 versions of the XHP35.2 HD and HI leds have up to ...