FATHALLA, I. SOLMAN; ZEAD HAMAD ABDULKARIM. Analyzing the Efficiency of LED Lighting to Improve Energy Consumption and Reduce Costs in Higher Education Institutions: A Case Study of the College of Engineering Technologies –Al Qubbah. The Open European Journal of Engineering and Scientific Research (OEJESR), Libya, v. 1, n. 2, p. 45–57, 2025. Disponível em: https://easdjournals.com/index.php/oejesr/article/view/35. Acesso em: 23 may. 2025.