LD25 Adjustable Current Voltage Electronic USB Load Resistor Discharge Battery Test 1. USB intelligent temperature control electronic load; High power, high current, large voltage, intelligent control. LD25 is a cost-effective, economical intelligent electronic load. 2. OVP overvoltage protection (25V-30V overvoltage protection, digital display OVP, permanent damage after more than 30V); OPP over-power protection (load temperature is greater than 80 degree Celsius, the device stops working, digital display OTP); OTP over-temperature protection (power greater than 25W, equipment stops working, digital display OPP). 3. Provide 4A, 25V, 25W (3 values are not exceeded) constant current test discharge task. The friendly human-computer interface and excellent performance indicators can meet the diverse testing needs. 4. It is suitable for measuring the output current capability of the charger, using the bulk aging test of the charger factory, and measuring the quality of the Micro USB charging cable and the Type-C charging cable. 5. Specifications: Rated operational voltage: DC4-25.0V Max discharging power: 25W Rated operational current: 0.25-4.00A (when fan do not work, the minimum constant current is 0.05A ) Fan Speed: Large size intelligent temperature control fan, speed 5800+-10%RPM Constant current resolution: +-(1%+3 digits) Heat dispatch method: intelligent temperature control fan + all aluminum fan Working temperature: -10-40 degree Celsius Adjustable potentiometer: precision multiloop adjustable potentiometer Display mode: 4 bit LED tube Expansion port: Micro USB port, Type-C port Product weight: 57g Product size: 83.8x41.1x27.9mm