On a roll: Martin Architectural is responsible for one of the largest permanent outdoor lighting installations in Sweden. The firm has illuminated the Balder roller coaster in the Liseberg Amusement Park, Gothenburg – Scandinavia’s longest wooden roller coaster. The colour changing illumination has been created using 40 Martin Exterior 200 luminaires, provided through Martin Scandinavia. The lighting design was by Primetec, who also carried out the installation.