The PowerSmart Inverter Generator produces 4500 surge watts/ 3600 running watts of power and is capable of up to 10 hours of operation on 50% load. The parallel enables this inverter generator to connect with another to double your output power. 4 stroke OHV single cylinder engine and forced air cooling system. Generator has 2* AC outlet (120V) . 2* USB-A ports(5V) and 1* DC car port(12V) . this portable inverter generator specially designed for charging laptops . mini-cooler . drone . and other outdoor electronics. Monitor voltage . frequency . overload indictor and operating hours with ease . Economy Mode monitors power consumption in real time.