Rated for Hazardous Locations - Class 1, Division 2 Groups A-D, making it the preferred choice for Oil ; Gas applicationss. SunSaver Solar Controller. Morningstar SunSaver is a leading small solar charge controller for professional and consumer applications. This device includes a combination of features and capabilities not found in other small PV controllers. Series design (not shunt) True 0 to 100% PWM duty cycle Multi-color status LED 3 LED ‘s for battery state of charge Cover to protect wire terminals Setpoint accuracy 12V: +/-25mV; 24V: +/-48mV Fully encapsulated in epoxy potting Marine rated terminals / anodized case Temperature compensation Sealed / Flooded battery select Parallel for 40 amps or more. Ideal for solar power systems including oil/gas, telecom and instrumentation, marine and boating, and remote homes