- AC Frequency – 50 Hz
- 3.4kw/kva capacity
- 100% Copper Enamelled Wire
- Voltage Regulation – 220V
- Single Phase
- Engine Type – SFE270E Max 9.0HP 4-stroke single cylinder
- Starting System – Recoil/Electric
- Fuel – Petrol
- Firman Eco – 3990ES is a 3.2kva Generator with Key
- Ecological Line Petrol Generator
- Electric Starting
- USA Standard 100% Copper
- 220-240V, 50Hz
- 13hrs run time at 50% load
- 3200 Starting Watts
- 6.5 HP OHV Engine
- Zero Gravity
- 4 Gallon Steel Fuel Tank
- Release Pin – easy fixing for handle
- Super Silent Muffler (with Spark arrestor) _low noise & silent
- 12V Electric starting system
- Heavy duty Alternator with Auto Voltage Regulator (AVR) – reliable and clean power for your tool & equipment