WEN DF400i - Spec Breakdown

In a nutshell, the WEN DF400i is a quiet and compact portable inverter generator mostly geared towards:

• RV travellers looking for even more independence
• People occasionally participating in sporting competitions, open-air performances and outdoor festivals
• Amateur DIY lovers
• Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
• Camping and tailgating hobbyists looking for a portable power source

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The dual-fuel technology of the WEN DF400i allows for an output of 120V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 3200W and a starting wattage of 4000W. If propane-powered, it gives 2900 rated watts and 3200 starting watts. In addition, the device is parallel capable (parallel kit not included) and thus, can be linked to a similar or compatible unit for added power.

WEN’s Auto Fuel Selection technology automatically selects the fuel source (LPG or gasoline) depending on availability and prioritizes LPG. Thus, if a propane tank with enough LPG is connected, the generator will automatically use LPG. If no propane tank is connected, or if there is not enough LPG remaining in the tank, the generator will use gasoline.

At a noise rating of 58 dBA (less noisy than a refrigerator), this inverter generator can be started via a conventional pull-start mechanism, or a simple and elegant electric starter (battery included).

As for its running time, the DF400i, along with its 2.2 gallons fuel capacity, can run for around 8.5 hours at 50% load with a full tank filled with gasoline (fuel consumption around 0.26 GPH). If propane is used, it can operate for around 9 hours (on a 20 lbs tank - propane consumption around 0.52 GPH).

Sensitive electronics can be safely plugged in the AC outlets, as the DF400i produces a clean sine wave, with a <1.2% Total Harmonic Disruption (THD).

Outlets

The control panel features the following 3 AC outlets:

In addition, it provides 3 DC outlets: there's two 5V USB ports with which you may charge electronics, for example mobile phones or tablets, conveniently and a 12V 8A (cigarette lighter style) receptacle allowing you to easily charge your batteries.

Thanks to its TT-30R receptacle (TT stands for 'Travel Trailer'), this WEN generator is RV Ready.

Portability

Thanks to its closed inverter generator design (L23.2 x W18 x H20.1 in), the WEN DF400i, is more esthetical than a typical, open frame generator. This type of design is the most modern and convenient way to recreationally generate power.

Since the generator weighs 100 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). Still, once it is on the ground, its set of 2 wheels and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

Features

The DF400i's control panel

The control panel of the DF400i includes a digital data center, which assists you in monitoring its status and activity, as it provides information on the fuel level, frequency, voltage, lifetime run hours and power output.

In addition to this info, some light indicators allow you to instantly see if the oil level is too low, the generator is on overload and the generator is ready.

The fuel shutoff feature turns off the flow of fuel, allowing for the DF400i to use up the remaining fuel from the carburetor before automatically shutting down. This helps fight the build-up and blockages caused by stagnant fuel inside of the carburetor, minimizing maintenance while prolonging the unit’s lifespan.

Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off, which gives you a complete peace of mind when using it.

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the WEN DF400i's package also includes these accessories: funnel, tool kit and propane hose.

Emissions

The WEN DF400i is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

Moreover, it features a spark arrestor, which makes it suitable for use in forested areas.