Most larger (4000 watt +) generators have a 220 outlet. Unless your outlet is a four prong (including ground,) then you don't have a neutral. This means what goes out on one leg of 220 has to come back on the other. As an example, coffee pot is on one leg, and alarm clock is on the other, without a neutral, it's good bye alarm clock. You may substitute anything that draws less current than device on other leg (big screen, control board for fridge, computer, etc.) They will become a TOAST, and in short order. DAMHIK Please don't consider making a "suicide cord," the kind with male plugs on both ends. Remember that power company will pull meter from any house that has generator running and doesn't have it fed through a transfer switch. Better safe than sorry!