I hesitated to write a review on this inverter until I was convinced it would work after prolonged use. It has been powering our fridge, freezer, big screen TV, satellite, computer, etc. for many months with no problems. In Arizona he worked in a warm and dry environment. The only comment I could make is that it has an automatic fan that at times sounds like a small jet engine getting ready to take off. Since the inverter is in a separate building from our house, this is not a problem.