Long-life lighting brings life cycle benefits to University
The long life of Chalmor’s Endurance luminaires is being put to good effect in the engineering laboratories of City University London, where gaining access to luminaires for re-lamping is difficult. Endurance luminaires have a life of at least 60 000 h, compared to a maximum of 20 000 h for standard T5 fittings. As a result, in most applications, Endurance lamps never need replacing during the life of the fitting. The laboratory previously used a mixture of sodium and mercury light sources. Lighting levels and light quality were considered inadequate, so a decision was made to replace the lighting. Stephen McKinnell of the university’s property and facilities department explains, ‘We carried out a life-cycle costing analysis. Over the life of an installation, we calculated we would save at least £50 000 by opting for the Endurance — much of it on maintenance savings because of the exceptionally long life of the fittings.’ Installed by McGoff & Vickers, the new luminaires have reduced the installed load compared to T5 fittings and, on average, trebled light levels. They have also improved colour rendering and colour appearance.