Features: 1. This product is the control board of energy storage spot welding machine, which has the advantages of small volume, light weight and easy installation. 2. Adjustable pulse, welding voltage, trigger time and welding interval. 3. Constant voltage output with charge equalization. 4. Support switching between Chinese and English. 5. 10A charging current, 12-19v wide voltage supply; 12V, 6a-10a adapter can be used. 6. It can be connected with 2.5-3.0v two series multi parallel capacitors and 100-3000f capacitors. Introduction to control panel: 1. 3P interface (upper right corner): used to connect MOS board and spot welder 2. DC interface (upper left corner): charging interface (12V, 5-10A power adapter is recommended) 3. 2p interface (lower left corner): the interface connecting the foot pedal controller needs to be triggered manually Note: there are two kinds of PCB boards, red and blue, which are delivered randomly.don't accept the specified. Color: Random Color (Random color in blue or red, don't accept the specified color.) Material: PCB+ electronic components Package Contents: 1 x control panel 1 x 2p connector 1 x 3P connecting wire 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.