The structure framing the building façades creates a grid like pattern onto which individual point source blue LEDs were fixed, punctuating the intersecting points of the building's structure. Illuminating Concepts specified 750 units of iGuzzini's Glim Cube, surface mounted 1 watt fittings for the application. Emitting a blue light, the organized array of Glim Cube luminaires act as finery for this 46 storey jewel within the heart of the city.
The visual impact is both dramatic and striking, giving Heron Tower its unique identity and appearance in the City Of London at night. Also of significant importance, this lighting scheme is almost maintenance free and consumes very little energy (less than 1 kw/h), which is in line with Heron Tower's focus on sustainability (the building has a BREEAM rating of ‘Excellent' and incorporates a number of green initiatives including an offset core that prevents solar heat gain and a veil of photovotaic cells on the southern façade). The LED light fixtures have a rated life of 50,000 hours which equates to over 13 years of use with the lighting being switched on for an average of 10 hours every night of the year.
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