The fixtures purchased by the NT are the 1000W Colosseo CYM units from Griven's dedicated 'Architectural Dimension' range. The fixtures have been installed by the NT's own staff to light the exterior north face of the Lyttelton flytower, viewable from Waterloo Bridge and surrounds.
Ambient Lighting reports that the NT will host a continuous demonstration of the fixtures during the evenings of this year's PLASA Show, so that interested parties can see the unit in action in a real environment. The Colosseo will also be on stand at PLASA, alongside the 4000W xenon Kolorglobe fixture, aimed at large-scale architectural installation.