Autojack Petrol Generator Quiet Portable Suitcase Camping Inverter 1800W. The IG2000i has an air cooled 4-stroke engine, quieter and more economical than 2-stroke engines and also features an engine economy switch. This feature further increases the fuel efficiency by adjusting engine speed to match the load required whilst also lowering the noise level. A feature which is beneficial, both to prolong the lifespan of the generator and reduce overall running costs. 4 Stroke Petrol Engine (No need to mix fuel). Output : KVA / 1800W. Rated Output : KVA / 1700W. Sockets : 2 x 230V. DC Output : 12v 4 Amp. Engine Type : 4 Stroke Petrol. Noise Level : 58 dB(A) taken at 7m.