Upgrading and supplementing of floodlit track lighting along the Holmenkollen rollerski track. The objective of the procurement is to ensure safe conditions for use of the existing track structure in all seasons, and a better adaptation of the level over the year. The primary part of the procurement consists of replacement of fixtures on the inner floodlit track that are asphalted and used as rollerski tracks in the summer season. The contract will also include options, that comprise new establishment of track lighting at different locations in the track network.