Introducing the onboard inverter generator with a Yamaha engine. The NPS Y4500eco Generator is lightweight, compact, quiet, and perfect for all of your RV onboard needs. This NPS Generator uses microprocessor control with Proprietary Pure Sine Wave Inverter Technology.• Fault, overload, and over-crank protection• Lightweight, compact design• Inverter technology with 5% pure sine wave output• Hot weather certified â tested in Death Valley• Yamaha 4-stroke engine• Remote start FOB with pull start backup• EPA / CARB compliant• National Park Service and USDA Forest Service Ready• Next-Gen 3-year / 2000-hour limited warrantySpecificationsModel Number: NPS4500Rated Watts: 4500Rated Amps: 37.5Voltage: 120 VoltsEnclosure: FiberglassType: Recreational Vehicle GeneratorStarting System: Remote Electric StartWeight: 185 lbs. Dimensions: 29.33"L x 21.46"W x 16.10"WEngine Size: 357 ccEngine RPM: Variable to 3600 RPMCooling System: Air CooledAlternator Type: 5% Pure Sine Wave InverterFrequency: 60 HzAuto Voltage Regulation: Yes Remote start FOB with pull start backup EPA / CARB compliant National Park Service and USDA Forest Service Ready | NPS Next-Gen Power Systems Y4500eco Generator