BlueSolar and SmartSolar MPPT Charge Controllers.Feature highlights common to all models:- Ultra-fast Maximum Power Point Tracking (MPPT).- Advanced Maximum Power Point Detection in case of partial shading conditions.- Outstanding conversion efficiency.- Natural convection cooling (except for the 150/70 and 150/85 CAN-bus models).- Automatic battery voltage recognition.- Flexible charge algorithm.- Over temperature protection and power derating when temperature is high.SmartSolar and BlueSolar:- SmartSolar models have Bluetooth built-in.- BlueSolar models can be made Bluetooth accessible by connecting a VE.Direct Bluetooth Smart dongle. Advantage: the products are not accessible when no dongle is connected.Day/night timing and light dimming on the low power models with a load output:- Use the VE.Direct TX digital output cable, and VictronConnect to configure.Virtual load output, including day/night timing and BatteryLife algorithm on the higher power models:- Use the VE.Direct TX digital output cable and connect to a BatteryProtect or a solid state relay. Use VictronConnect to configure.Display options:- MPPT Control: connects to all models with a VE.Direct port, except the BlueSolar MPPT 70/15. (Does not connect to the 150/70 and 150/85 CAN-bus models).- SmartSolar Control Display: a plug-on display compatible with all models 150/45 and higher. Both displays can be connected to one controller simultaneously.