1. Supports firmware upgrades, MPPT solar charging, and serial communication 2. Full-view 1.8-inch high-brightness true-color LCD screen with customizable color scheme and 4-way rotation 3. Features input reverse polarity protection and output backflow protection for comprehensive functionality and safeguards 4. Two intelligent temperature-controlled PWM stepless speed fans with low noise + large-area heat sinks 5. Input utilizes common-mode choke to significantly reduce input power ripple impact, achieving low-ripple output Parameter: Product Name: Digital DC Step-Down Power Supply Input Voltage: 12.00~70.0V Output Voltage: 0~65.00V Output Current: 0~50.00A Output Power: 3250W Voltage Resolution: 0.01V Resolution of current: 0.01A Accuracy of voltage: ±0.5%+1 word Accuracy of current: ±0.5%+3 word Stored Data Sets: 10 sets Screen size: 1.8-nch Full-View High-Brightness True Color LCD Conversion Efficiency: Approx. 95% Max output voltage:Input voltagex0.945 Buzzer:YES Soft start: YES Output ripple typical value:vpp-200mv MPPT function: Support MPPT solar charging Protection mechanism: Input Reverse Polarity Protection: YES Output Backflow Prevention: YES nput under-voltage (LVP):(10-75V, default 10V) over-voltage (OVP):(0-67V, default 67V) over-current (OCP):(0-52A, default 52A) over-power (OPP):(0-3400W, default 3300W) over-temp (OTP):60-110'c, default 110°C over-time out (OHP):1 minute -99 hours 59 minutes, off by default over-capacity (OAH):0-4200KAh, off by default over-energy(OWH):0-4200KWh, off by default EXT over-temp(ETP): 0-110°C, off by default Precautions: 1. Do not connect AC power to the input, especially 220V mains electricity. 2. This is a step-down powe