1.gasoline generator SP2500 series, 2. air cooled, single phase, single cylinder, 3. rated output :1kw to 5kw. Gasoline generator , SP2500 ... series .usage:suitable for office , shop, house, entertainment site , etc.Main Features:1. 4-storke, OHV engine ... , low fuel consumption.2.low noise and pollution , stable voltage and frequency ...