as everybody has already said 110 no go , but if you are patient it can work, first you remove the paint where your contacts meet not where the panels ,if you have good contacts from the welder to metal ,meaning one side gets the juice while the other preforms the ground the paint on the panels where they meet has not bearing on the weld, when you pull the trigger lets the juice from one tip to the other thru the welder and creates a resistance weld. 110 is capable on thin sheet metal but not multiple layers (3 or more). the draw back on 110 is the length of use (2 or 3 welds ) before resistance welder has to cool off , to be efficient. transformer gets to hot to work. that why you a lot of the big shops using Pro-spot or another brand that is liquids cooled. (around 40,000 for a good one) . however there is alternative solution , if you keep your eyes open you can find a Lenco 6000 liquid cooled spotter with different attachments works off of 220 rather well . but again has limitations compared to Pro-spot and others . I personally have 3 of the Lenco 6000 's one set up for wheel house attachments another for the shorter reaches , and reaching about 20 inches. when using you need think out side the box due to reach limitations, build in sub assemblies . . do your research. there are no good cheap tools to duplicate factory assemblies.