The Aceup Energy AI4000S portable inverter generator delivers powerful and reliable performance with its 149cc 4-stroke OHV engine that produces 4000 peak watts and 3200 rated watts. Weighing only 50.7 pounds, this generator features a fully-enclosed design that reduces noise to a quiet 55dB, making it ideal for use in RV parks, camping, or emergency backup power. With a runtime of up to 5 hours at half-load, the AI4000S includes a variety of outlets, including 120V AC, 12V DC, and USB, to power a range of devices and appliances. Backed by a 1-year limited warranty and EPA compliance, this generator is a versatile and dependable choice for your power needs.