Huawei Optimiser 1100W P Long Cable – 02314AQB-001 for frame mounting of PV module up to 550W. The Smart PV Optimiser is a DC-DC converter that is installed on the back of the solar panels of a PV system. It manages the maximum power point (MPP) of each module to improve the energy yield of the system. It is also responsible for functions such as shutdown and module-level management. Optimisers can isolate the operation of a panel that is affected by shadows or has a different orientation to the rest of the line of panels in the installation.