Fangrui Product Details [precision Monitoring]the Solar Controller Adopts An Industrial-grade Main Chip, 16ad Sampling Accuracy, Temperature, And Accurate Real-time Discharge Current Display, And The Power Generation Is Clear At A Glance. [fast Charging Speed]mppt Solar Controller Has High Charging Efficiency, Autofocus Mppt Loading, High Charging Efficiency, Non-stop Detection And Charging, And Bidirectional Focus . [multiple Intelligent Protection]the Charging Controller Has Multiple Intelligent Protection Functions, Bu-ilt-in Overcurrent Protection, Short Circuit Protection, Reverse Polarity Protection, Open Circuit Protection, Automatic Recovery, [high Efficiency]the Solar Fast Charge Controller Adopts Innovative Mppt Technology, The Efficiency Is As High As , Compared With Ordinary Controllers, Thiscan Increase The Efficiency By -. 1. Keep The Battery At The Charging Voltage. 2. Prevent The Battery From Overcharging. 3. Prevent The Battery From Discharging Too Much. 4. Prevent The Battery From Chargin