DC Optimizer ensures that each PV module in a string works at the Maximum Power Point (MPP) all the time, resulting in optimum power output. All the PV modules in the string generate maximum power output even under mismatched conditions like partial shading, accumulation of dirt, unequal aging, and difference in inclination, temperature gradients, or manufacturing tolerances. DC Optimizers are offered as Add-On device that is connected between the Junction Box and the String. Hence they can be installed on any PV modules across varied installation designs. It fits seamlessly with new and existing installations.