PowMr Solar Charge and Discharge Controller with Fan Details: 1. Weight: 1300 grams 2. Dimensions: 215x115x50 mm 3. Material: PSC, aluminum alloy 4. Rated voltage: 12243648V 5. Rated current: 30405060A 6. Function: current, voltage, current working mode, charging power, temperature display Features: 1. Output overvoltage, undervoltage, temperature rise, input anti-inflow, reverse connection, temperature, short circuit protection, safe and reliable 2. Used in lithium batteries and accumulators with a wide range 3. High strength, high ignition point, impact resistance, aging resistance, corrosion resistance 4. 10 wiring terminals, convenient for multiple machines in parallel 5. LCD backlit liquid crystal display, full backlight to half backlight about 1 minute and 30 seconds, half backlight for 5 seconds 6. The intelligent electric fan heats up, it turns on when it is above 45 degrees Celsius, and it turns off when it is below 40 degrees Celsius, to dissipate heat for the controller and save power 7. PV and Battery positive and negative poles each have two terminals 8. Out power is displayed, and the conversion rate of PV panels can be calculated 9. The charging status displays the sun icon and the direction icon, and only the moon icon is displayed when not charging, which clearly shows the charging status, and the Battery icon shows the battery level, which is obvious 10. The temperature is accurate to one decimal place 11. The absorption stage of battery charging can be set to better protect the battery 12. The main interface cannot be automatically jumped, which is convenient for real-time monitoring and observation when the entire system has problems