It didn't work for what I needed to use it for. I have the smaller one which would not power an electric kettle that I like to take camping for oatmeal, grits, coffee, etc.. so, I purchased the 500W thinking that the higher wattage should be capable of providing enough for operation without tripping. I was wrong. This one tripped too. I am not an electrician but I do understand that electrical items with a heating element pull higher wattage, like a hair dryer, etc.. but I had seen other reviews where this unit was used to power a small, single burner cook top and another where it was used to power a small crock pot.. so, heating elements.. seemed like fairly common sense that this may work for my purpose. The small electric kettle works fine in a standard 110 outlet in my home, so I'm at a loss now as to what kind of wattage I would actually need in an item such as this to be able to power my kettle.