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| Specification | Firman W01785 | Genmax GM1200i |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | No |
| Running watts | Winner: Winner: 1700 W | 1000 W |
| Starting watts | Winner: Winner: 2100 W | 1200 W |
| Noise (lower limit) | Winner: Winner: 54 dB | 58 dB |
| Weight | 45.9 lbs | Winner: Winner: 25.3 lbs |
| Run time @50% load | Not available | Winner: Winner: 6.5 h |
| Run time @25% load | 9 h | 10 h |
| Fuel tank | 0.9 gal | 0.7 gal |
| Fuel gauge | No | No |
| Approx. dimensions (L × W × H) | 20 x 12.1 x 16.7 | 16.5 x 9.5 x 15.7 |
| Electrical | ||
| Voltage (AC) | 120 | 120V 60 Hz |
| Voltage (DC) | 5 | 5V |
| GFCI outlets | No | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | <1.2% % |
| Engine | ||
| Engine | 80 cc OHV 4-stroke, cast iron sleeve. | 57 cc Dinking OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Not available | Recoil |
| Warranty | ||
| Warranty | 3 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 1000 W |
| Starting watts | Not available | 1200 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 | Not available | 6.5 h |
| Run time @25% load | Not available | 10 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Floating | Not available |
| UPC | 840876117859 | 768494055271 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 1000 |
| Starting Watts (Gasoline) | Not available | 1200 |
| Runtime @ 50% Load (Gasoline) | Not available | 6.5 |
| Runtime @ 25% Load (Gasoline) | Not available | 10 |
| AC Outlet Types | 1x 120V 20A (5-20R); 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 80 cc OHV 4-stroke, cast iron sleeve. | Not available |
| Engine Displacement | 80 | 57 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | Not available | 10 |
| Runtime @ 50% Load (Gasoline) | Not available | 6.5 |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Fuel Connection Components | Not available | Funnel, tool kit, RV adapter, and parallel cables |
| Included Accessories | Oil, funnel, tool kit, and RV adapter | Funnel, tool kit, RV adapter, and parallel cables |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Additional specs | ||
| Summary | The Firman W01785 is a 1,700-watt inverter generator built on an 80 cc OHV 4-stroke engine with a cast iron sleeve. At 45.9 lbs, this unit delivers enough power to run a laptop, phone chargers, small power tools, and basic household appliances simultaneously, but cannot handle heavy loads like air conditioners or large welders. The 2,100-watt peak gives it the starting surge needed for devices with inrush current, such as refrigerators or circular saws. Because the W01785 runs on gasoline and produces less than 3 percent THD, users can safely connect sensitive electronics like laptops and televisions without risk of voltage spikes causing damage. The 54 dB noise level means operation at conversational volume, making this unit suitable for campgrounds, residential neighborhoods, and RV parks where noise restrictions apply. | The Genmax GM1200i is a 1000-watt gasoline inverter generator built for portability and quiet operation. At 25.3 lbs, it moves easily between job sites, campsites, and storage. The 1200-watt surge capacity handles startup demands for small appliances, power tools, and sensitive electronics. |