[Feature]:Spot Welding DIY Kits,Electrical conductivity and heat dissipation,can work continuously for a long time.This version has a fan interface,when the temperature exceeds 45degree turn on the motherboard has a fixed button and display,easy to adjust [selection]:For power input,Power supply equipment support 12V20AH ~ 12V65AH.welding current is about 100A~900A [Adjustable]:Spot Welder,99 gear intelligent digital display spot welding machine,Double sided out of the line,easy to spot welding with a label,not easy to connect the wrong [Powerful Function]:The welding current max Approx. 3600A,which is more than enough to welding common 0.1mm-0.3mm nickels plate [Material]:Spot Welder Control Board is Made of high quality PCB material,strong and durable, Weight: 0.02866009406 Pounds, Manufacturer: TWISAXC