Fangrui Product Details 1. Intelligent Start And Stop Fan, Optimized Fan Drive Circuit, More Stable Wind Power And Wider Working Voltage. 2. High-current Usb, Dual Interfaces Are More Widely Applicable, And Can Be Used In Parallel If The Power Is Not Enough. 3. Upgrade The High-power Tube With Higher Fan Speed And Better Heat Dissipation, Resulting In Higher Load Power. 4. Intelligent Over-temperature Adjustment To Avoid Excessive Temperature Damage To The Module Or Other Safety Issues When Overloaded. 5. Wide Range Of Applications: The Main Purpose Is Power Aging, Battery Discharge, Factory Testing, Etc. It Is Suitable For Various Production Aging Uses. Voltage: Dc 3.7-20v Working Current: Less Than Equal 3a Maximum Power: 25w Interface: Usb/type-c Heat Dissipation Method: All-aluminum Fan Heat Fin + Intelligent Temperature-controlled Fan Module Interface: Usb/type-c: Input 3.7-20v Power Supply, And The Two Interfaces Are Parallel Inputs. On Fan Short Circuit: Force The Fan To Rotate. Off Fan Short Circuit: Forced To Stop The