Boliy PRO3600SI QBlue RV Pro 3700 Pull Start Generator Highest power to weight ratio available - 68 lbs. dry weight with a 3000 watt rated output and 3300 watt maximum output DSP inverter technology, true digital signal processor for a 20 percent higher power conversion rate than transistor generators Computer inverter module, constantly adjusts voltage to maintain 120V On-Demand smart throttle, automatically regulates engine speed according to load for increased fuel efficiency and extended running time Two-Tiered noise dampening system, maintains decibel levels 4-8 times lower than traditional generators to meet new noise level standards within states, municipalities, as well as state and national parks