About GENMAX GENMAX is a research, production and sales technology company with more than a decade of experience designing and manufacturing reliable and durable power supplies for the North American and world markets, and genMAX generators are your best choice for home, work, entertainment, or preparing for natural disasters，GENMAX products are the standard of performance excellence. GENMAX Portable Inverter Generator, 4000W ultra-quiet gas engine,with Parallel and Series Capability, Electric Start, Ideal for Home backup power. Electric Start with CO Alert Engine:4-stroke 145cc OHVFuel Tank:3.6 GallonFuel Type:GasolineStarting Wattage:4000WRunning Wattage:3200WRuntime:4.5 Hours 25%-Load（Gasoline）Low Oil Shut-off,CO DetectVoltage：120VFrequency：60HZCertification:CARB/EPA/PGMA Remote Electric Start Features a dependable push button electric start system that makes starting and stopping the generator a breeze. The engine's choke operates automatically,making starting as simple as the single push of a button. Digital Control Center The Digital Control Center features an LCD display showing hours run, voltage output, and load level. Mute&Lightweight At only 52.9 pounds, Light weight and compact , The sturdy handle makes it easy to carry for long distance.The fully enclosed design greatly reduces noise levels and is very quiet to use. Clean Electricity Provides clean, stable power ideal for sensitive electronics,tools and appliances.