Optimizers
With an optimizer for the solar panel, you get maximum electricity production. Optimizers also make each panel less shade-sensitive and less dependent on other solar cells in the installation. Optimizer solar cells control current and voltage at a panel level. This also means that the optimizer can handle different panels in terms of how they sit in the direction of the weather, the slope on the roof, peak power, and more. It is not entirely unusual for a house roof to have different slopes and refractions and the surfaces face different weather conditions. Then the optimizer can be useful.