Analysis of electrical and photometric quantities of CFL and LED bulb lamps

Today, the technology regarding the bulb lamps is composed by the compact fluorescent lamps (CFLs) and Light Emitting Diode (LED) lamps. The LED lamps represent the new entry as alternative to the CFLs, and offer a different solution to the direct conversion of electrical energy into visible light. Industrial and academic research interests focus on their development due to their good performances, enhanced energy savings in comparison to incandescent lamps, easy control of both brightness and color, and a long lifetime. This work aims to compare the technical parameters and performances of the two different technologies through laboratory measurements and a detailed analysis carried out on several lamps. Moreover, the analysis of some photometric quantities of the lamps during aging tests is given. Finally, the study of the electrical quantities with reference to the power quality on the mains, due to the power absorbed by the lamps, is performed in accordance with the Standard IEEE 1459-2010.