Smarter Tools STAP-2000iQ, 1600 Running Watts/2000 Starting Watts, Gas Powered Portable Inverter Yamaha MZ80 Engine Maximum compliance ratings for both EPA and CARB Pure Sinewave technology, suitable for powering sensitive electronic equipment like a laptop computer Super-quiet muffler with USFS-approved spark arrestor, only 51 dB and eliminates straying sparks Can operate in parallel with another AP-2000iQ for 3000 sustained watts. The item is non- returnable. Yamaha MZ80 Engine Maximum compliance ratings for both EPA and CARB Pure Sinewave technology, suitable for powering sensitive electronic equipment like a laptop computer Super-quiet muffler with USFS-approved spark arrestor, only 51 dB and eliminates straying sparks Can operate in parallel with another AP-2000iQ for 3000 sustained watts