LIFAN Power USA prides itself in standing behind all its products with a 3 Year Limited Warranty and the highest level of service and support with a complete parts and service network. All LIFAN generators are made with Horizontal Shaft OHV engines which feature Industrial duty upgrades like cast iron sleeves, automotive grade rods, pistons, rings, crankshafts, valve and valve springs. The OHV design provides better Fuel Efficiency, Quieter Operation, and Longer Life. In addition, all LIFAN generators come equipped with Alternators that have Solid Copper Windings which increases efficiency and gives better performance. The Energy Storm Series generators are ideal for Homeowners and Pros who are looking for exceptional value combined with premium quality. The 5,500-Watt Energy Storm Generator features an Automatic Voltage Regulator, which ensures maximum protection for appliances as well as the generator itself. The regulator protects electrical components in the generator that could be damaged due to surges or drops in voltage. Another important feature is the Voltage Selector Switch, which provides you with the maximum usable power from the generator and more flexibility and use overall. This generator is also EPA Approved and features an electric start capability.