Features: 1. This controller is an auxiliary welding controller for argon arc welding, which can help argon arc welding workers to easily complete the welding work and improve work efficiency 2. This controller can accurately output the welding control time, control the welding points to be consistent, and can play the effect of imitating cold welding and spot welding 3. The wiring of the controller is simple and easy to use, which is a good helper for the staff 4. The controller has four working modes, single-point pulse, double-point pulse, continuous pulse, original argon arc welding 5. The novice is easy to operate, not easy to weld through, not easy to deform Single point pulse: Each time the welding button is pressed, the controller outputs a pulse Double-point pulse: Each time the welding button is pressed, the controller outputs two pulses Continuous pulse: Press and hold the welding button, the controller will continue to output pulses until the button is released Original argon arc welding: Press and hold the welding button, the controller will continue to output the start signal until the button is released Colour:As Shown Material:plastic Note: Installation guide not included,Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * Cold welding controller