TECHNOLOGY / THE ARC SHOW 199
Our LED expert Dr Geoff Archenhold found a wide diversity of new LED lighting products exhibited at The ARC Show... despite this being a Light + Building year.
ARCHENHOLD ON ARC
I have to be honest right from the start - I actually didn’t get a chance to see all the new products of every exhibitor at ARC this year because it seemed to be the place where everyone (designers, specifiers and manufacturers) came together for two days and discussed technology, products and new projects. There was a real buzz about The ARC Show and it was nice to see that the exhibitors have built on the success of last year’s event when the show moved back to its spiritual home of the Business Design Centre. The IALD LED panel session posed some challenging questions to the panel, which consisted of representatives from OSRAM, Cree, Forge Europa and Seren- ity Lighting. Personally, I prefer more focused shows that don’t sprawl endlessly over large numbers of halls and have stands the size of a large UK town and The ARC Show once again proved a more relaxed and intimate show experience. That said, there was a surprising number of interesting new LED products on show and here are just a small selection that caught visitors’ interest. Crescent Lighting launched several new products at ARC including a new downlight shown in figure 1 that offer several great features at what seemed to be a very com- petitive price. Manufactured in the UK this fitting uses the Bridgelux 1203 LED module, which is available in either white 4200K CRI 80 or warm white 3000K CRI 82. Output at 4000K is more than 900lm. The fixture comes with two different reflector options, either a narrow 16 degree or a wide 40 de- gree beam. The product is adjustable with a maximum 30 degree tilt angle and really looks great. Cresent Lighting also displayed a smaller 10W downlight version using a pin-bloc heatsink which is made from a cold forged process to offer improved thermal manage- ment performance as shown in figure 2. Farnell, under the element 14 brand, had several products on display including the multi-coloured OLED panels from Verbatim. As a sign of progress with OLEDs the panels are increasing in size and lumen output, however it is still a technology looking for a killer application. Farnell also offered a
new MR16 kit as shown in figure 3 allowing would be fixture manufacturers to test the thermal and optical performance of LED fixtures and drivers. The MR16 kit will come with a variety of LED emitter options and drivers enabling a great deal of flexibility for perfecting a high quality MR16 design. Megaman announced the impending release of TECOH, their first LED module range, cre- ating application-ready solutions that can be easily adapted into existing luminaires. The TECOH range includes TECOH MHx, an LED module that occupies the same space as a G12 ceramic metal halide lamp and has a similar light centre length offering a true alternative to a 35W metal halide lamp as shown in figure 4. Also new is the TECOH CFx range, which provides high performance twist-lock LED modules with integrated drivers for general lighting, replacing con- ventional light sources such as 50W halogen, 2x13W and 2x18W compact fluorescent lamps as shown in figure 5. The lumen packages on offer include 1100 lumens and 2000 lumens. The Megaman TECOH CFx modules are based on a multiple-chip white LED array at the bottom of the module and a reflector to direct the light through a slightly opaque cover resulting in a lambertian beam shape. This unique approach results in an appealing product design with good colour character- istics. Photonstar also demonstrated the CLE (Compact Light Engine) Module and is the first of several products to be launched that features the company’s patented Chro- maWhite technology. The winning Chro- maWhite Tungsten+ version claims to be the first LED source to match the popular, but soon to be banned, halogen lamp in terms of light colour and quality, and dimming characteristics. The unique features of ChromaWhite ad- dress the common barriers to LED adop- tion, particularly eliminating concerns over unexpected colour shift over time and the ability to render colours (especially red) true to daylight. In addition, for applica- tions such as hospitality, lighting designers want a light source that has the dimming characteristics of halogen – warming in
Figure 1: Crescent Lighting’s 20W LED downlight which can be tilted at up to 30 degrees.
Figure 2: Crescent Lighting’s 10W downlight using an LED array and special cold forged heatsink.
Figure 3: The new MR16 Kit from Farnell element 14.
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