Sainsbury’s leads the way

Royal Philips Electronics’ revolutionary new LED lighting system has been selected by UK supermarket giant, Sainsbury’s, to light the interior of its freezer cabinets across 350 stores. In all, some 15,000 pieces of Philips Affinium LED freezer lighting modules with Philips Luxeon LEDs have been installed resulting in a staggering energy saving of 75% per freezer. Moreover, the improvement in the lit effect has increased by in excess of 150%.
Sainsbury’s is the first retailer to install the new Philips Affinium LED lighting system which offers huge potential in reducing energy costs. This is particularly important given that lighting accounts for almost 20% of the world’s electricity consumption.
Indeed, per freezer the annual energy savings are estimated to be the same as the entire six months electricity bill of an average household. These savings also equate to more than 1 tonne of CO2 per freezer per year, which contributes in the fight against climate change.
However, the Affinium LED solution also ensures good quality of light which is of course particularly important in the retail environment where merchandise has to be displayed to optimum effect attracting shoppers when making their purchase decisions. Furthermore, good consistent uniformity of light gives a much more professional appearance to the freezer display in line with brand values and company image. 
Working on the three year development project to find improved freezer lighting solutions, integral team member, Les Cole, explains: “As a leading retailer, Sainsbury’s is  committed to bringing its customers the best in food and health – that also means how they are presented. At the same time we need to respect the environment. At Sainsbury’s we launch new projects every year designed to achieve lower energy consumption. We were, therefore, particularly interested in the Affinium LED solution as it combined both of these important elements – light quality and energy reduction.”
Philips Affinium LED modules use Luxeon Rebel LEDs and offer a far longer lifetime than conventional light sources for this type of application.  By using Luxeon technology, each module is expected to have a useful life of up to 10 years in store. This compares with fluorescent lamps which have a useful life of just 6 -12 months when used in the hostile environment of freezers. Thus, Sainsbury’s can dramatically reduce maintenance costs across their estate.
In addition, LED lighting is inherently more reliable and more rugged than fluorescent lamps. What is more, since it operates far better at lower temperatures and produces less heat, cooling costs are reduced. Frozen foods are also no longer exposed to glass fragments where instances of fluorescent lamp breakages have sometimes occurred inside the freezer. In fact, enhanced safety is a prime feature of LED lighting as it operates at an SELV ( Safety Extra Low Voltage) of 24v DC replacing 240v in many traditional cabinets. This means that in the unlikely circumstance that an LED module should break down or electrical wiring be exposed, the voltages used in the freezer are inherently safe for customers under all circumstances.

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