The Sumec Firman SPG 4000 generator features a 3.3KVA/3.0KW capacity, a 100% copper alternator with a 50 Hz frequency, a single-phase output, and a SPE210E engine with a 7.0HP rating and air coolingThe Sumec Firman SPG 4000 generator features a 3.3KVA/3.0KW capacity, a 100% copper alternator with a 50 Hz frequency, a single-phase output, and a SPE210E engine with a 7.0HP rating and air cooling