1. Using Airfoil Heat Dissipation, The Heat Dissipation Effect Is Good And The Output Power Is Large (The Power Can Reach About 1800w When The 48v Input And Fan Are Added). Mlcc Ceramic Capacitors Are Newly Added To The Input And Output, And The Output Ripple Is Significantly Reduced, Which Is About 100 Millivolts When Converting 48v To 72v 4a. The Output Voltage Is About 19v, The Current Is About 30, And The Undervoltage Protection Is About 10.5v. 2. The Temperature-Controlled Fan, Combined With The Liquid-Bearing Fan, Achieves A Good Balance Between Noise And Heat Dissipation. When The Load Is Light, The Fan Does Not Rotate. When The Load Is Heavy And The Temperature Reaches About 60 Degrees, The Fan Automatically Turns On. It Can Effectively Reduce Noise And Extend Life. Both Input And Output Use High-Frequency Capacitors, Which Have Low Output Ripple, Low Heat Generation And . 3. The Main Power Tube Insulation Board Is Made Of Aluminum Oxide, And Its Thermal Conductivity Is 10 Times That Of Ordinary Insulation Pads. Three Indicator Lights: Undervoltage, Overcurrent, Power Indicator, Working Status Is Clear At A Glance. Three Input 20a Fuses Are Connected In Parallel To Protect The Output From Accidental Short Circuit. 4. Using 100v 210a To-247 Large Package Power Tube, It Has Large Power Margin And Good Dynamic Response. The Undervoltage Protection Is Adjustable And Can Effectively Protect Batteries And Can Also Be Used For Solar Cells. With Constant Current Function, It Can Be Used To Boost Battery Voltage, Charge Batteries, Etc. 5. Double Large-Size Iron-Silicon-Aluminum Magnetic Rings, Using Four 1.2 Pure Copper Enameled Wires In Parallel, With Low Heat Generation And High Efficiency. The Constantan Wire Output Current Is Sampled, And The Constant Current Is Stable And The Temperature Drift Is Small. New Design, Conversion Efficiency As High As 98.1percent (See Data Sheet Efficiency Conversion Curve Below For Details). 3296W Multi-Turn Potentiometer, High Adjustment Accuracy And Small Drift. Description: Module nature: non-isolated boost module Input voltage: DC10-60V Input current: 10-30V input voltage, current 30A 31-60V input voltage, current 2 Quiescent operating current: 15mA (when the output voltage rises from 12V to 20V, the static current will increase when the output voltage is high) Output voltage: 12-90V continuously adjustable (default output is adjusted to 19V for shipment) Output current: 20A MAX, please strengthen heat dissipation if it exceeds 1 (it is related to the input and output voltage difference, the larger the voltage difference, the smaller the output current) Constant current range: 0.8-20A (+/-0.3A) Input anti-reverse connection: Yes (150A power MOS anti-reverse connection) Low battery protection: Yes (8-50V adjustable) self-recovery type Working temperature: -40~+85 degrees (please strengthen heat dissipation when the ambient temperature is too high) Working frequency: 150KHz Installation : 4 3mm copper pillars Wiring : terminal block (please use high current pure copper wire) Module size: approximately 130mm long, 52mm wide and 84mm high (height including copper pillars and fans), 130mm long, 52mm wide and 67mm high (height excluding copper pillars and fans) Material: PCB colour: As shown Package Contents: 1 x Constant Voltage Current Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.