Abstract: This document presents the study that was conducted on two electric lamps, one square lamp of 25w at 120 volts and the other, a ring light at 14w at 5 volts. It was documented and demonstrated by analyzing two variables, one concerning the electric consumption with an electric current analysis circuit during the operation period, comparing the power output of both lamps and the second regarding the analysis of light intensity (lumens) with an electric circuit including a LDR photoresistor, to value which lamp delivers more light intensity.