Power optimizers are devices used in solar energy systems to enhance the performance of individual solar panels. They work by monitoring and adjusting the output of each panel, ensuring that they operate at their maximum efficiency, even if some panels are shaded or dirty. This helps to increase the overall energy production of the solar array. Unlike traditional string inverters, which connect multiple panels together, power optimizers allow each panel to function independently. This means that if one panel underperforms, it won't significantly affect the output of the others. This technology is particularly beneficial in installations with varying sunlight conditions or complex roof layouts.