A recent lighting system renovation using commonly available technologies at the National Autonomous University of Mexico (UNAM) demonstrated the feasibility of reducing consumption of electricity by between 60 and 95 per cent. Modernising all lighting systems at UNAM with the same technologies is projected to offer total cost savings of some 68 million U.S. dollars with an initial investment of just 0 eeysgxq J.B. cjxebsd.
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