The borough of Wigan is serviced by two central libraries, one of which is Leigh Library built in 1971. The library, is managed by leisure and culture provider WLCT on behalf of Wigan Council -The library continues to service the local community, hosting arts & crafts events, providing IT training services and reading groups for children are examples of the many activities ongoing at the library.

Brief

Leigh Library sought to upgrade their lighting scheme due to their existing scheme’s high maintenance and poor efficiency, on their behalf, NPS approached Steon Lighting.

General illumination in the existing scheme was provided by a series of 18 suspended quadrants containing fluorescent light sources, enclosed on each side by a wraparound prismatic lens. The quadrants featured dated technology, notably magnetic control gear with canister starter switches and 2400mm 125W T12 fluorescent tubes. These lamps are no longer readily available, widely regarded as obsolete due to preferable alternatives that have since superseded this technology.

The lumen output from the T12 fluorescent tubes had deteriorated due to age and the quality and distribution of light was poor. The efficiency of the luminaire was also limited by ageing of the lens, which had suffered yellowing due to prolonged UV exposure. The diminished translucency of the lens reduced the luminous intensity of the luminaires and further inhibited their proficiency.