Wind And Solar Complementary Controller MPPT Boost Charging Solar Street Lamp Monitoring Controller Lead-acid Lithium Battery Universal ,Easy to Use

Fan brake external unloading resistor, anti-gale, more stable Controller dual power supply function: battery + solar power supply, not afraid of battery loss The controller has a built-in dust-proof net, which is easy to replace and clean, ensuring the service life of the controller The internal circuit board of the controller is sprayed with three anti-paints to prevent dust, moisture and static electricity LCD displays battery, fan, solar energy, load voltage and current and other information, some parameters can be set