Specification: Item Type: MPPT Solar Controller Material: Plastic Product Size: Approx. 40 x 75 x 22mm / 1.6 x 3.0 x 0.9in Photosensitive: No Output During the Day, Load Output at Night, Suitable for Street Lights Efficiency: ≥95% Noise: <55dB Suitable for Photovoltaic Panel Parameters: Open Circuit Voltage: 21-25V Photovoltaic Input Power: 150W PV Input Start Up Voltage: >17V PV Input Tracking Voltage: 16 to 25V Output to Battery Current: 10A (maximum 12A) No Load Loss: 20MA Voltage Regulation Rate: 1% Load Regulation: 5% Full Load Ripple: 400mV No Load Ripple: 100mV Load Output Current: 10V Static Power Consumption: 12mV Protection Class: IP67 Overheating Protection: When the Internal Temperature of the MPPT Controller Exceeds 100℃, the MPPT Controller Will Reduce the Output Power. if the Internal Temperature Continues to Rise to 110℃, the MPPT Controller Will Automatically Turn off the Output. when the Internal Temperature of the MPPT Controller is Lower Than 90℃, the MPPT Controller Will Automatically Resume Operation. Package List: 1 x MPPT Solar Controller Note: 1.The MPPT controller should be fixed on an iron or metal bracket to avoid the vibration of the machine due to instability.2.The MPPT controller should allow some space around the enclosure.3.Output and input wires should be kept as short as possible to avoid excessive energy dissipation during transmission.4.There is high voltage and high current in the machine, and non professionals are not allowed to disassemble.5.The input and output terminals should be reliable and not loose, so as to avoid heating at the connection  Features Reliable Practicality: MPPT maximizes the conversion of solar panel energy to battery charging, which has reliable practicality. Rectifier Circuit: The IP67 MPPT solar controller adopts a high efficiency synchronous rectifier circuit structure. Anti Backflow: The solar panel controller has the function of anti backflow, which meets daily power supply needs. Simple Installation: The solar panel controller can be installed by connecting the output and input lines according to the applicable voltage. Protection Function: With short circuit protection, over temperature protection, solar input under voltage protection, battery under voltage protection, load port short circuit protection.