Lifan Energy Storm ESI 5600iER, 5000 Running Watts/5500 Starting Watts, Gas Powered Portable Inverter 5500 Watts maximum AC output/5000 Watts rated AC output 389cc 4-stroke OHV gas powered engine (Battery Included) Power sensitive electronic equipment, Safe Clean Power with 2% total harmonic distortion; ultra quiet - 59 decibels at 23 feet 4 gallon fuel tank runs 9 hours at 50% load, auto throttle feature - power on demand Receptacles 2 each- 120V 20amp, 1 each- 3 prong NEMA L5-30R twist lock 30amp AC, 1 each- 120/8.3amp DC, powers 15,000 BTU RV AC, quiet - 57dB