Pulsar GD400BN Dual Fuel Portable Generator 4000W
- 4000 peak / 3200 running watts on gas
- 3600 peak / 2800 running watts on propane
- 4.5 hours at half load, 1.1 gallon tank
- 47.3 pounds
- About 59db at half load
- 145cc, 5.5HP engine, recoil start
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light dual fuel inverter generator for campers and RV owners who want gas or propane flexibility. It starts by pull cord, and runtime per tank is short.
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ASIN: B0BHXLT5D9Model: GD400BNCategory: Generators
Overview
Campsites, tailgates and home outages all suit the Pulsar dual fuel generator, which runs on gas or propane. Its inverter output is safe for televisions, phones and laptops, and it is light enough for one person to carry.
Fuel flexibility in a light package is why to choose it, letting you switch to propane when gasoline is scarce. The small tank gives a short runtime, so long outages mean frequent refills or a propane tank.
Who it's for
RV travelers, tailgaters and households keeping propane on hand will appreciate the dual fuel option. Anyone wanting push button starting or all night runtime on gas should look elsewhere.
Pros and cons
- Runs on gas or propane
- Light for its output
- Inverter power for electronics
- Quiet at half load
- Short runtime per gas tank
- Recoil start only
- Only 2 outlets listed
Performance notes
Propane delivers less power than gasoline, which is why output drops on that fuel. Runtime figures assume half load, so heavier use empties the tank faster. The inverter smooths output for sensitive electronics.
Specifications
| Brand | Pulsar |
|---|---|
| Model | GD400BN |
| Dimensions & fit | |
| Item weight | 47.3 pounds |
| Item Dimensions L x W x H | 18.9 x 11.4 x 17.3 inches |
| Capacity & performance | |
| Tank volume | 1.1 gallons |
| Noise level | About 59db at half load |
| Power & efficiency | |
| Running Wattage | 3200 watts (gas); 2800 watts (propane) |
| Engine Power Maximum | 5.5 hp |
| Starting Wattage | 4000 watts (gas); 3600 watts (propane) |
| Fuel Type | Gas and propane |
| Voltage | 120 volts |
| Total Power Outlets | 2 |
| Warranty & support | |
| Warranty Description | 1 year manufacturer |
| Other details | |
| Runtime | Up to 4.5 hours at half load |
| Frequency | 60 hertz |
| Ignition System Type | Recoil start |
| Engine Displacement | 145 cubic centimeters |
Frequently asked questions
Does the Pulsar GD400BN have electric start?
No. The ignition is listed as recoil start.
How much power does the Pulsar make on propane?
3600 peak watts and 2800 running watts on propane.
How long does the Pulsar GD400BN run?
Up to 4.5 hours at half load on its 1.1 gallon tank.
Is the Pulsar GD400BN CARB compliant?
The description calls it CARB compliant and RV ready.