EcoFlow 400W solar panel
(9 reviews)
Big portable solar power: 400W bifacial up to 25% efficiency, a 3-angle stand and a built-in XT60 cable to recharge a large station in record time.
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Characteristics
- Power: 400W, bifacial design (up to 25%)
- Connection: Built-in XT60 cable (EcoFlow stations)
- Stand: 3 angles (30/45/60°) + sun guide
- Durability: IP68 rating
- 400W bifacial, 3-angle stand, IP68
Detailed overview: EcoFlow 400W bifacial portable solar panel
The EcoFlow 400W portable solar panel is the most powerful model in the brand's portable solar range, designed to quickly recharge large power stations in the sun. Like the other panels in the series, it uses a bifacial design: its front face catches the sun's direct radiation, while its rear face recovers light reflected by the ground or surrounding surfaces, allowing a conversion rate that can climb up to 25%.
Despite its 400W, it stays light and compact for its category, foldable and transportable. Once deployed, it rests on a stand adjustable to three angles (30°, 45° and 60°), with a built-in sun exposure guide that helps aim it precisely to maximise output throughout the day. Its XT60 cable is built directly in, which eases storage and allows a simple, direct connection to EcoFlow power stations in the River and Delta series.
On ruggedness, it benefits from IP68 certification, high protection against water and dust. Note however: this panel is designed to be deployed then stowed, and is not recommended for a permanent fixed installation outside or on a vehicle.
Powerful, bifacial and adjustable in angle, the EcoFlow 400W solar panel is for anyone who wants the fastest possible portable solar recharge for a large power station, camping, in a van, in a motorhome or off-grid.
Full specifications
Detailed characteristics (EAN: 4895251649872)
Panel
| Peak power?Rated panel power in full sun (STC conditions). | 400 W |
|---|---|
| Cell technology?Cell type; monocrystalline offers the best efficiency, flexible CIGS tolerates shading better. | Monocrystalline |
| Conversion efficiency?Share of solar energy converted to electricity; higher means a more compact panel for the same power. | 25 % |
| Panel type?Foldable (portable), rigid framed (fixed install) or flexible (curved surfaces). | Foldable |
| Bifacial?Also captures reflected light on its rear side, for extra output. | Yes |
Electrical specifications
| Voltage at max power (Vmp)?Voltage at the maximum power point. | 41 V |
|---|---|
| Current at max power (Imp)?Current at the maximum power point. | 9.8 A |
| Open-circuit voltage (Voc)?Open-circuit voltage; check against your station/controller MPPT input range. | 48 V |
| Short-circuit current (Isc)?Maximum short-circuit current. | 11 A |
Outputs and connectors
| Output connectors?Output socket type(s) (MC4, XT60, Anderson, DC, USB…); determines compatibility with your station. | XT60 |
|---|
Durability and format
| Ingress protection?Water and dust resistance (IP rating). | IP68 |
|---|---|
| Adjustable kickstand?Kickstand or support to angle the panel toward the sun. | Yes |
User manual / Instructions for use (PDF)
☀ How fast does this panel recharge a power station?
The EcoFlow 400W panel (400 W) recharges a Jackery Explorer 1000 v2 (1070 Wh) in ~3h50 or an EcoFlow Delta 2 Max (2048 Wh) in ~7h20, in full sun.
| Compact / mid | Recharge |
|---|---|
| Jackery Explorer 100 Plus (99 Wh) | ~20 min |
| EcoFlow Trail 200 DC (192 Wh) | ~40 min |
| Allpowers Volix P300 (256 Wh) | ~55 min |
| EcoFlow River 3 Plus (286 Wh) | ~1h |
| High capacity | Recharge |
|---|---|
| Anker Solix C2000 Gen 2 (2048 Wh) | ~7h20 |
| Allpowers R4000 (3456 Wh) | ~12h |
| Fossibot F3600 Pro (3840 Wh) | ~14h |
| EcoFlow Delta Pro 3 (4096 Wh) | ~15h |
Estimate in full sun (ideal conditions). In practice, count on 3 to 5 hours of truly useful sunlight per day, so a full recharge may span several days depending on weather and orientation.
Compatible power stations
A selection of power stations whose solar input accepts this photovoltaic panel, best match first.
Comparison
At around £470 to £641, the EcoFlow 400W solar panel compares with large 350 to 400W portable solar panels, targeted by searches such as "powerful portable solar panel" or "400W foldable solar panel". Here is how it sits against three references: the Bluetti PV350, the Jackery SolarSaga 200W and the EcoFlow 220W panel.
| Criterion | EcoFlow 400W | Bluetti PV350 | Jackery SolarSaga 200W | EcoFlow 220W |
|---|---|---|---|---|
| Power | 400W | 350W | 200W | 220W |
| Design | Bifacial (up to 25%) | Monofacial | Monofacial | Bifacial |
| Stand / angle | 3 angles + guide | Kickstands | Kickstands | 30-60° + guide |
| Rating | IP68 | IP65 | IP67 | IP68 |
| Observed price | ≈ £555 | ≈ £512 | ≈ £512 | ≈ £341 |
In short, the EcoFlow 400W panel offers the highest power of the group and a bifacial design the Bluetti PV350 and the Jackery SolarSaga 200W do not have, with a three-angle stand and excellent IP68 rating. The 220W keeps the same strengths with less power for half the price. To recharge a large station as fast as possible in the sun, the 400W is the most efficient portable panel.
Related video
Video: EcoFlow NextGen 400W Bifacial Portable Solar Panel (Lightweight Edition) - Published on 19/05/2026
Our tester's review: Julien De Jurquet
At 400W, this panel plays in a different league from classic portable models: it is the one you bring out to quickly recharge a large power station, and it delivers. In full sun, the bifacial design grabs extra watts from the rear, and we saw our station climb noticeably faster than with a 200W panel. The three-angle stand (30, 45, 60°) and the built-in exposure guide help find the best yield with no guesswork, and the already-in-place XT60 cable plugs straight into our EcoFlow stations. It stays foldable and transportable, but let's be clear: at 400W it is large once deployed and needs space, this is not a panel you carry for a simple day trip. The IP68 rating is reassuring when the weather turns. One point to note: EcoFlow advises against leaving it hung permanently outside or on a vehicle, it is made to be deployed then stowed, not for a fixed installation. To quickly recharge a large station while camping or off-grid, it is the most efficient panel in the range.
Frequently asked questions: EcoFlow 400W bifacial portable solar panel
Its 400W are designed to quickly recharge large power stations (Delta series in particular). Its built-in XT60 cable plugs straight into them. It is the most powerful panel in the EcoFlow portable range.
The front face catches direct sun and the rear face recovers light reflected by the ground, which increases output. The conversion rate can reach 25%, above a classic monofacial panel.
No. EcoFlow advises against hanging it for long periods outside or on a vehicle. It is designed to be deployed then stowed, not for a permanent fixed installation. For that, prefer a flexible panel.
Its stand offers three angles (30°, 45°, 60°) and a built-in sun exposure guide helps aim for the best sunlight, to maximise output throughout the day.
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Published on 09/07/2026, updated on 14/08/2026