Sustainability, security and comfort were the objectives pursued by the village of Arraiolos when re-lighting its historic centre. Renowned worldwide for its tapestries, the local authorities wanted to preserve the village’s patrimony and improve the quality of life for the inhabitants while taking environmental concerns into consideration. In collaboration with ECLIPZ, a lighting design company, the Arraiolos Historical Centre Public Lighting Plan was drawn up. It is the first large scale lighting project based exclusively on LED technology in Portugal and incorporates a remote management system. The new plan with LED luminaires will generate energy savings of approximately 50% per luminaire and dramatically reduce maintenance costs. The luminaires are also equipped with a remote management system to adapt the lighting levels during the night. Each luminaire is controlled individually from a centralised system and could enable the local authorities to generate additional energy savings of 30%.