The main difference between the MC4 and Tr models is the way the solar panels are connected.

- The MC4 model uses standard MC4 connectors, ready to plug directly into the solar panel cables.
- The Tr model uses screw terminals, allowing larger cables to be connected or crimp terminals to be used.
- Both models offer the same performance and functionality, only the connection method differs.
- The choice depends on whether you prefer ease of installation (MC4) or wiring flexibility (Tr).

All other technical characteristics remain identical.