Electrical Contracting News (ECN) May 2016 - Page 28

LED INNOVATION Mimicking the look and feel of halogen has, for many, been the holy grail. Fire rated downlighters Fire rated downlighters such as the mPro are dimmable and convertible, making them suitable for residential and hospitality installations. Highly efficient SMD chips and miniaturised drivers can achieve efficacy of >91lm/W. NanoDrive technology features a miniaturised integrated driver which is detachable from the light source to allow for better heat dissipation leading to longevity, even under blown insulation material. This clever convertible design 26-28 LED Innovation – Aurora.indd 28 means that the downlight can be installed in ceiling voids as shallow as 47mm. Flexibility is key to aesthetics, so interchangeable lenses and bezels, and colour temperature choices as help achieve the desired look. Human centric lighting Human centric lighting is intended to promote a person’s wellbeing, mood and health, which can improve concentration, safety and efficiency in the workplace in educational environments and can support healing processes and help to alleviate chronic health problems with people that have irregular daily routines. Human centric lighting widens the applications of light from simple visual tasks to that of providing beneficial biological and emotional effects. Recognising these benefits, it allows the designer or user to create their own environment according to their needs, mood and tasks to provide the optimum lighting solution to improved performance and motivation. Solutions such as Colour Xchange can be used to create an ultra dynamic interior lighting project that creates the appearance of the external environment, offers visual performance for tasks and visual comfort, allows for creativity and adapts to differing moods. It is known that productivity improves within the workplace with the application of a suitable lighting scheme and products featuring this technology allow the creation of application specific environments from a Warm (3,000K) through an Intermediate or Neutral (4,000K) to a Cool (6,500K) in order to suit mood, task and time of day. In the UK, desk based task areas are expected to have an illuminance of 300-500 Lux on the working plane with a glare rating of UGR19 or less and a task specific light source can introduce both the lighting level required and optimum colour temperature. Introducing increased blue in the light can help supress melatonin and raise alertness with the working environment. Historically, most people spent time outside under a blue sky, however, today’s 24 hour a day culture means that around 90 per cent of time is spent indoors under artificial illumination at constant colour temperature, whilst outside, the natural daylight is ever changing throughout the day in quantity, directional characteristics, colour temperature and colour rendering. Natural daylight has the ability to invigorate and promote a sense of wellbeing and the therapeutic quality of natural light has never been in doubt. However, its benefit has not been fully understood until more recently. Probably the most important findings are that light controls the biological or body clock through regular light-dark patterns known as the Circadian Rhythm and that dedicated lighting applications can enhance a plethora of environments. Paul Davidson is Aurora Group technical & project manager, a position he has held since March 2014. Prior to this Paul was Aurora’s technical trainer and business development manager for two and a half years. Wi