Power outages can leave your lights out and your family disconnected, but with this Briggs and Stratton 5500-Watt portable generator you don't have to worry. The Briggs and Stratton engine is rugged and reliable, to keep delivering power even if a power outage lasts several days. The Power Surgeâ„¢ Alternator produces a short surge of power needed to start large motor-driven appliances and tools simultaneously, and for added protection, CO Guard technology shuts down the generator when harmful levels of carbon monoxide are detected around the generator's operating area.