
The TS4-R is a retrofit solution that brings smart module functionality to standard PV modules, for upgrading underperforming PV systems or adding smart features to new installations. The TS4-R retrofit base can be matched with one of several electronic covers to address a range of functions and budgets. Together they form a new generation of module-level power electronics: flexible, replaceable, upgradeable, and accompanied by a powerful PV 2.0 communication backend.

The TS4-R is available for purchase immediately in three pre-assembled versions:
- TS4-R-O: Optimization (includes all the benefits of Safety and Monitoring)
- TS4-R-S: Safety (includes all the benefits of Monitoring)
- TS4-R-M: Monitoring