Fangrui Product Details Lcd Display Solar Charge Controller Pwm Controller 10a 20a 30a 12v 24v Dual Usb 5v Output Solar Panel Charger Regulator Description: -industrial-grade Master Chip, Sampling Accuracy, Temperature, Charging Current, Discharge Current Accurate Real-time Display, Power Generation At A Glance. - Automatic Focusing Tracking Charging, High Charging Efficiency, Non-stop Detection During Charging, Bidirectional Focusing Tracking. -large-screen Lcd Display, Adjustable Charging And Discharging Parameters. When The Output Is Off, The Time.can Be Adjusted, Which Is More Convenient. -acomplete Three-phase Charge Management, Effectively Protect The Battery, The Battery Is More Durable. -built-in Overheating, Overcurrent Short Circuit, Open Circuit Protection, Reverse Connection.protection,when The Fault Is Eliminated, The Controller Automatically Recovers, Does Not Damage. Specifications: Size:4.9x3.9x1.1in12.5x10x3cm Usb Output: 5v/2.5a Standby Current: