Fangrui Product Details 1: Widely Used 2: High Performance-price Ratio 3: Simple And Easy To Operate 4: There Are Two Options: Terminal And Without Terminal 5: Small Appearance Parameter Description: Working Voltage: 9-80v Working Current: 50a (it Is Recommended To Strengthen Heat Dissipation When Using More Than 25a) Working Internal Resistance: 2 Milliohms 100v/300a High Current 2 Milliohm Low Internal Resistance Mos Special Note: The Voltage Drop Is 0.04v. If You Want To Measure The Input And Output Voltage Drop Values, Please Connect To The 9v-80v Power Supply And Measure Again. The Management Ic Not Work When There Is No Power Input Types:b-without Terminal Colour:black Material:pcb Size:44 X 18mm Weight: 12g Package Contents: 1 X Diode 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.