So I been doing restoring a few pair of headlights recently and I'm starting to get into the mobile headlight restoration business. The thing is I been using my pc7424xp to apply the compound onto the lenses after sanding, but if I were to go mobile on this, is there another machine I could use that doesn't need a power cord? Would a drill apply yield the same results as the pc? People who actually do the mobile headlight restoration would be helpful ! Thanks !