ITEM NAME:10 pcs 3A DC-DC Buck Converter Step Down Module LM2596 Power Supply Output New Descriptio n Description: All Use SANYO Solid State Capacitor, 36u Thickened Circuit Board, High Q Value High Power Inductor With Output LED Indicator It Is Recommended To Use The Current Within 2.5a For Long Working Hours, And Heat Sink (Output Above 10W) Should Be Added If The Current Exceeds 2A; As It Is A Step-Down Module, In Order To Ensure Stable Output, Please Keep The Minimum Pressure Difference Of 1.5v. Connection Mode 1. Welding, Directly Welding The Power Cord At The Input (Output) Port; 2. Welding Pin Can Be Inserted Through The Lead Wire Or Inserted Into The Hole Plate For Use; Or Add A Pin And Weld It Directly On The PCB. Application Example 1. On-Board Voltage Regulator Power Supply, You Only Need To Connect The Input End Of This Module To The Cigarette Holder Of The Car For Power Supply, Then The Potentiometer Can Be Adjusted, And The Output Voltage Can Be Adjusted At Any Time From 1.25 To 30V, Which Is Very Simple And Convenient To Power Your Mobile Phone, MP3, MP4, PSP And Many Other Devices. 2. Power Supply For Electronic Equipment. When The Equipment Needs 3-35v Power Supply And The Corresponding Voltage Power Supply Is In Hand, This Module Can Be Used To Easily Adjust The Voltage To The Required Voltage To Solve Problems. 3. System Working Voltage Test. This Module Can Be Used To Debug The Working Voltage Range Of Various Voltage Test Systems, Which Is Very Easy And Convenient. Specifications: Model/Name: Lm2596sdc-Dc Buck Module Input Voltage: 3.2v ~35V Output Voltage: 1.25V~35V Output Current: 3A (Maximum) Conversion Efficiency: 92% (Highest) Output Ripple: