EcoFlow 400W Lightweight Bifacial Portable Solar Panel

At a Glance

• 400W ±10W rated solar output
• Up to 445W output under bifacial BNPI test conditions
• Bifacial design captures light from both sides
• N-Type TOPCon monocrystalline solar cells
• Up to 25% conversion efficiency
• Approximately 10.2kg ±0.3kg
• 5.8kg lighter than the previous-generation 400W portable panel
• Built-in 3.5m XT60 charging cable
• Integrated folding support stand
• Adjustable 30°, 45° and 60° stand positions
• Integrated solar angle guide
• IP68 water and dust resistance
• Foldable design for transport and storage
• 5-year EcoFlow warranty

Short Description

The EcoFlow 400W Lightweight Bifacial Portable Solar Panel combines high solar output with N-Type TOPCon technology, up to 25% conversion efficiency, an integrated 3.5m XT60 charging cable and adjustable support stand for powerful portable solar charging.

Why Choose This EcoFlow

The EcoFlow 400W Lightweight Portable Solar Panel provides substantial solar charging power in a lighter and easier-to-handle design than the previous-generation EcoFlow 400W portable panel.

Its bifacial construction allows the front surface to capture direct sunlight while the rear surface can also use reflected ambient light, increasing potential energy generation under suitable conditions.

N-Type TOPCon monocrystalline solar cells provide conversion efficiency of up to 25%, helping make effective use of available sunlight.

The integrated 3.5m XT60 charging cable reduces the need for a separate standard solar cable, while the built-in folding stand provides 30°, 45° and 60° positioning options.

An integrated solar angle guide also helps position the panel more effectively towards available sunlight.

Best For

• High-power portable solar charging
• Home backup power systems
• Load-shedding charging support
• EcoFlow portable power stations
• Camping
• Overlanding
• Caravans and RVs
• Off-grid living
• Farms and remote locations
• Outdoor work
• Emergency backup charging
• Temporary solar installations
• Users wanting higher solar input with portable setup flexibility

Product Description

The EcoFlow 400W Lightweight Bifacial Portable Solar Panel is designed for customers who need substantial portable solar output without the weight and bulk of EcoFlow's previous-generation 400W portable panel.

It provides a rated output of 400W ±10W under Standard Test Conditions.

Its bifacial design allows the primary solar surface to collect direct sunlight while the rear surface can also capture reflected ambient light. Under specified BNPI bifacial test conditions, output can reach up to approximately 445W.

The panel uses N-Type TOPCon monocrystalline silicon solar cells with conversion efficiency of up to 25%.

At approximately 10.2kg ±0.3kg, the panel is 5.8kg lighter than the previous-generation EcoFlow 400W portable panel.

A built-in 3.5m XT60 charging cable simplifies connection to compatible portable power stations.

The integrated folding support stand provides three positioning angles of 30°, 45° and 60°, while the built-in solar angle guide helps align the panel more effectively with available sunlight.

An IP68 water and dust resistance rating provides protection for suitable portable outdoor use.

Key Features

• 400W Rated Output: Delivers 400W ±10W under Standard Test Conditions.
• Bifacial Design: Captures direct sunlight from the front and reflected ambient light from the rear surface.
• Up to 445W Bifacial Output: Can achieve up to approximately 445W under specified BNPI test conditions.
• N-Type TOPCon Cells: Uses high-efficiency N-Type TOPCon monocrystalline silicon technology.
• Up to 25% Efficiency: Provides high solar conversion efficiency for faster compatible charging.
• Lightweight Generation: Approximately 5.8kg lighter than the previous EcoFlow 400W portable solar panel.
• 10.2kg Design: Combines high power with improved portability.
• Built-In 3.5m Cable: Integrated solar charging cable simplifies setup and storage.
• XT60 Connection: Designed for compatible portable power station solar inputs.
• Three Stand Angles: Adjustable to 30°, 45° or 60°.
• Solar Angle Guide: Helps optimise positioning towards available sunlight.
• Foldable Design: Folds down for easier storage and transport.
• IP68 Rated: Provides water and dust resistance for suitable outdoor use.
• 5-Year Warranty: Covered by EcoFlow's 5-year limited warranty.

Specifications

Solar Performance

Standard Rated Output

400W ±10W

This is the panel's rated solar output under Standard Test Conditions.

Bifacial Output

Up to 445W

The bifacial design allows reflected ambient light to reach the rear solar surface in addition to direct sunlight captured through the front.

The higher 445W figure applies under specified BNPI bifacial testing and should not be treated as guaranteed continuous real-world output.

Conversion Efficiency

Up to 25%

N-Type TOPCon monocrystalline silicon solar cells provide high conversion efficiency for portable solar charging.

Electrical Specifications

Built-In 3.5m Charging Cable

The solar charging cable is integrated into the panel for easier setup and storage.

Cable Length: 3.5m
Connector: XT60

The built-in cable allows direct connection to compatible portable power stations with a suitable XT60 solar input.

Adjustable Support Stand

The integrated folding support stand provides three positioning angles:

• 30°
• 45°
• 60°

Adjusting the panel angle can help keep the solar surface better aligned with available sunlight throughout the day.

Solar Angle Guide

The integrated solar angle guide helps position the panel so that sunlight reaches the solar surface more directly.

For effective solar generation, reposition the panel as the position of the sun changes.

Compatibility

The EcoFlow 400W Lightweight Bifacial Portable Solar Panel is designed for compatible EcoFlow portable power stations and other supported solar-input equipment.

Before connecting the panel, confirm that the portable power station supports the panel's electrical specifications.

Panel Output Requirements

• Open-Circuit Voltage: 39.3V
• Maximum Power Voltage: 34.5V
• Short-Circuit Current: 12.2A
• Maximum Power Current: 11.7A
• Rated Power: 400W ±10W
• Connector: XT60

The connected power station must support the panel's voltage, current and power output.

A matching connector alone does not guarantee electrical compatibility.

Always check the exact solar-input specifications of the connected portable power station before use.

Multiple-Panel Setups

Multiple panels may be used with compatible power stations where the combined electrical output remains within the power station's solar-input limits.

Before connecting more than one panel, confirm:

• Combined open-circuit voltage
• Combined operating voltage
• Combined current
• Maximum supported solar-input power
• Required connection accessories
• Connection method supported by the power station

Use only compatible connection accessories for the intended solar configuration.

Solar Charging Performance

Actual solar output and charging speed will vary depending on:

• Sunlight intensity
• Time of day
• Season
• Cloud cover
• Panel angle
• Panel direction
• Reflected light reaching the rear surface
• Temperature
• Partial shading
• Dirt or dust on the solar surfaces
• Cable and conversion losses
• Connected power station input limits
• Battery state of charge

For best performance, position the panel in strong direct sunlight and adjust its angle as conditions change.

Outdoor Use

The panel carries an:

IP68 Water & Dust Resistance Rating

This provides protection against water and dust within the limits of the IP68 rating.

For effective outdoor use:

• Keep both solar surfaces clean
• Avoid unnecessary shading
• Position the panel towards direct sunlight
• Use the adjustable support stand to optimise the angle
• Keep the rear surface unobstructed where practical
• Keep electrical connections clean and secure
• Allow the panel to dry before folding and storing

The Lightweight Portable Solar Panel is intended primarily for portable deployment.

For extended hanging or permanent installations, use a solar panel designed for fixed mounting.

What’s in the Box

• 1 × EcoFlow 400W Lightweight Bifacial Portable Solar Panel

The following are integrated into the panel:

• 3.5m XT60 charging cable
• Folding support stand
• Solar angle guide

Warranty

5-Year EcoFlow Limited Warranty

Sustainability

The EcoFlow 400W Lightweight Bifacial Portable Solar Panel converts sunlight into electrical charging energy.

Its bifacial design can capture direct and reflected light, while N-Type TOPCon solar-cell technology provides conversion efficiency of up to 25%.