The objective of this work is to demonstrate the need to carry out lighting studies for an efficient use of energy consumption through the appropriate choice of luminaires and their photometric distribution, and the benefits obtained as a result of an optimal lighting study. Due to the increasing importance of optimized lighting, it is important to show that the results can be further optimized. The analysis shows the results of software simulations with metal halide lamp luminaires and the LED equivalent. For the lighting of narrow areas, which is common in warehouses, it is taken as a case study the warehouses with racks and narrow aisles, the use of lighting in very important, having warehouses that can work 24 hours a day and 07 days a week. The vast majority of this type of facilities maintain the use of metal halide and the conventional optimization proposal is the change to LED, w...