vLight is a cutting-edge battery system designed for retrofit applications, allowing homeowners to upgrade their existing PV systems to Solar+Storage systems that can store excess solar energy. Seamlessly integrated with current solar setups in a single step, it requires no additional inverters, AC wiring changes, communication reconfigurations, or new permits. This advanced integration enhances energy consumption efficiency and reduces electricity costs, making vLight an innovative and cost-effective solution for optimizing solar investments.