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Lifan LF4000 Spec Review

The Lifan LF4000 is a compact open frame portable generator with a rated wattage of 3500 W and a starting wattage of 4000 W.

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Picture 1 of the Lifan LF4000
Picture 2 of the Lifan LF4000
Picture 3 of the Lifan LF4000
Picture 4 of the Lifan LF4000
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Set an alert for the Lifan LF4000 - Current lowest price: $531.49
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Price History
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Price history for the Lifan LF4000
Latest updates:
  • $531.49 - September 5, 2020
  • $529.43 - September 2, 2020
  • $547.93 - September 1, 2020
  • $529.43 - August 31, 2020
  • $532.44 - August 30, 2020
  • $524.19 - August 24, 2020
Data source: homedepot.com
Since: August 24, 2020
  • Highest Price: $547.93 - September 1, 2020
  • Lowest Price: $524.19 - August 24, 2020

Description

Zoom on the Lifan LF4000

In a nutshell, the Lifan LF4000 is a compact portable generator mostly geared towards:

  • RV travellers looking for even more independence
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • DIYers who wish to improve their efficiency with tools
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Professionals in need of safely powering high-intensity work or lighting equipment

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Lifan LF4000 is powered by a 212 cc (7 hp) Lifan OHV 4-stroke engine. It delivers 120/240V, runs on gasoline and offers a running wattage of 3500W as well as a peak wattage of 4000W.

The generator is rated for a noise of 65 dBA (just slightly more noisy than a normal conversation). Its starting mechanism is based on a conventional pull-start mechanism.

The fuel capacity of 4 gallons allows the LF4000 to operate for around 12 hours at 50% load with a full tank (fuel consumption around 0.33 GPH).

Outlets

The control panel includes the following 3 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120/240V 30A (L14-30R) receptacle

In addition, it provides 2 DC outlets: there's a 12V 8A receptacle allowing you to easily charge your batteries and a 5V USB port allowing you to conveniently charge electronics such as mobile phones and tablets.

Since the LF4000 bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.

Portability

The Lifan LF4000 has a conventional, open frame design, of the following dimensions: L25.5 x W19.3 x H19.3 in, which offers support and allows it to be raised above ground level. This type of design is ideal for tough environments and heavy outdoor use.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 104 lbs make it incredibly difficult to manually lift and transport.

Further safety during transport, loading and unloading of the device is provided by a lift hook, which is placed on the top of the generator's frame.

Features

Panel of the Lifan LF4000

The LF4000's control panel

The LF4000 and its control panel include a convenient meter showing you voltage, frequency and lifetime hours. This feature comes handy when monitoring its status and activity.

The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Lifan also included a tool kit in the LF4000's packaging.

Emissions

The Lifan LF4000 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

The Lifan LF4000 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Lifan LF4000 compare to generators of similar power (between 3000 and 4000 W).

  • At a weight of 104 pounds, the Lifan LF4000 places in the expected weight range of the generators in the 3000-4000 rated wattage range. Regarding dry weight, one of the champions in the same power range is the WEN GN400i, with a dry weight of only 66.1 lbs.
  • This generator has a somewhat average expected noise for its power range, rated at 65 dBA. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Cat INV4000E, whose lowest noise levels reach just 51 dBA.
  • As the LF4000 offers around 12 hours run time on a full tank at a 50% load, it falls within the average autonomy range among the generators of a similar power. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Honda EB4000X, boasting with around 16 hours.
  • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. This generator has an average fuel consumption among comparably powerful devices, as it reaches 0.33 GPH (gallon per hour) at a 50% load. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen4200, which boasts with a gas consumption of only 0.17 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 3000-4000W generators, the Lifan LF4000 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • GFCI Outlets
AVERAGE SPECS:
  • Decent weight (104 lbs)
  • Acceptable noise (65 dBA)
  • Decent run time
  • Decent fuel efficiency
WEAKNESSES:
  • No electric start
  • Not CARB-compliant
  • No spark arrestor

Do you own the Lifan LF4000 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine212 cc Lifan OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts3500 W
Starting watts4000 W
Running amps (@120/240V)29.2/14.6 amps
Peaks amps (@120/240V)33.3/16.7 amps
Run time @50% load12 h
Run time @25% loadN/A
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 120/240V 30A (L14-30R)
DC outlets1x 12V 8A receptacle
1x 5V USB port
Data centerVFT
IndicatorsNo
Fuel tankSteel, 4 gal
Fuel gaugeYes
Misc
Weight104 lbs
Approx. dimensions (L x W x H)25.5 x 19.3 x 19.3 in
Noise (lower limit)65 dBA
THDUnknown
EmissionsEPA
SecurityLow oil and overload protection
Spark arrestorNo
Accessories includedTool kit
Warranty3 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

About Lifan

LIFAN, or rather LIFAN Power USA, is a rather small and new company, based in Arizona. LIFAN’s range is comprised of engines and related products, such as pressure washers, water pumps and of course, generators – of which there is a surprising variety, including inverters, portable generators, but also high output, standby home generators. The company admirably admits that their primary (and most likely only) manufacturing facilities are located in China and their goal is to provide affordable products above all.

Warranty Information

The Lifan LF4000 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Lifan generators, please consult Lifan's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-866-471-7464.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Blender400850
Total2517 W3992 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Slow cooker270270
Total2760 W3350 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W

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