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| Specification | Powermate PM1200i | Yamaha EF4500iSE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 1000 W | Winner: Winner: 4000 W |
| Starting watts | 1200 W | Winner: Winner: 4500 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 58 dB |
| Weight | Winner: Winner: 33 lbs | 209 lbs |
| Run time @50% load | Winner: Winner: 5.5 h | Not available |
| Run time @25% load | 7 h | 15.2 h |
| Fuel tank | 0.79 gal | 4.5 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 18.3 x 10.3 x 15.7 | 30.7 x 24.3 x 27.2 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | No | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Less than 3% % | 3 % |
| Engine | ||
| Engine | 54 cc OHV 4-stroke | Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Electric |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 1000 W | 4000 W |
| Starting watts | 1200 W | 4500 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 5.5 h | Not available |
| Run time @25% load | 7 h | 15.2 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Floating |
| UPC | 696471078909 | 765053833196 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 1000 | 4000 |
| Starting Watts (Gasoline) | 1200 | 4500 |
| Runtime @ 50% Load (Gasoline) | 5.5 | Not available |
| Runtime @ 25% Load (Gasoline) | 7 | 15.2 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) | 1x Duplex 120V 20A (5-20R)1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke |
| Engine Displacement | 54 | 357 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 7 | 15.2 |
| Runtime @ 50% Load (Gasoline) | 5.5 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Included Accessories | Funnel and tool kit | Battery |
| Warranty & identification | ||
| Part Number | Not available | EF45ISEZ |
| Additional specs | ||
| Summary | The Powermate PM1200i is a portable inverter generator designed to provide clean and stable power for sensitive electronics, tools, and appliances. It features a fully enclosed case for ultra-quiet operation and RPM+ technology that automatically adjusts engine RPM based on load demand to reduce sound emissions and conserve fuel. | The Yamaha EF4500iSE is a 4500-watt inverter generator designed for maximum efficiency and minimal noise, suitable for emergency backup, recreational use, and DIY projects. |
