SMART SOLAR CHARGE CONTROLLER: Solar charge the smart way with the Victron Energy BlueSolar MPPT charge controller, to ensure that every ray of available sunlight is converted into usable energy, while optimizing battery longevity. MAXIMIZE POWER OUTPUT: Lightning-fast optimum power point tracking and intelligent charge algorithms make sure you always get the maximum possible power output, even when your solar panels are partially shaded. MPPT SOLAR CHARGE CONTROLLER: By constantly monitoring the voltage and current output of your solar (PV) panels, MPPT technology ensures that every drop of available power is rinsed out of your panels, and harvested for storage REMOTE CONTROL: Remotely control and monitor the extensive features of your BlueSolar MPPT solar charge controller by attaching a Bluetooth dongle and pairing it with your smartphone or other device via VictronConnect NO BUILT-IN BLUETOOTH: The BlueSolar models require a Bluetooth dongle for wireless connectivity. If you prefer Bluetooth built-in, the SmartSolar range comes with it included.