Model: 6500, 6500es Voltage Adjust Mode: AVR Phase: Single-Phase Rotational Voltage (V): 220 Power Factor (COS ): 1 Rotational Output (KW): 5 Max. Output (KW): 5.5(6.5) Efficiency (%): =>83 Rotational Frequency (Hz): 50 Engine Model: GP390, GP390es Bore & Stroke (mm x mm): 88x64 Max. Torque: 26.5/2500 Starting Mode: Hand/ (Hand/Electric) Engine Type: OHV, Single Cylinder, Forced Air Cooling, 4-Stroke Fuel Volume (L): 25 LxWxH (MM): 680x510x540