3 models in this file
EcoFlow 400W Solar Panels for Camping and Van Life
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EcoFlow is best known for portable power stations, and its folding solar panels are designed to feed them. The 400-watt panel sits at the top of the brand’s portable range: large enough to recharge a mid-size battery in a day of good sun, but still foldable into a case you can carry from the van to a sunny patch of ground.
The six listings below include single panels, two-packs, a panel from a different brand that is sold as a match for power stations, and a DELTA 3 solar generator bundle, so the real differences are how many panels you get, what cables come in the box, and how much weight you are willing to carry.
The line-up at a glance
EcoFlow 400W Solar Panels Compared
| Model | Panels Included | Stated Efficiency | Water Rating | Weight |
|---|---|---|---|---|
| 2 High Efficiency 400 Watt Portable | 2 | High Efficiency (no figure) | Not listed | About 35.3 lbs each |
| EF ECOFLOW 400W Portable Solar Panel | 1 | 22.4% in features, 23% in specs | IP68 (main body) | 35.3 lbs |
| 400W Portable Solar Panel Foldable Solar (MHPOWOS) | 1 | 23.5% | IP67 | 27.9 lbs |
| 2 x 400W Portable Solar Panels | 2 | Up to 23% | IP68 | Not listed |
| 400W High Efficiency Portable Solar Panel | 1 | 22.6% to 23% | IP68 | Not listed |
| Solar Generator DELTA 3 Series | Panel plus power station | Up to 23% | Not listed | Not listed |
No. 1 of 3 · EF Ecoflow
2 High Efficiency 400 Watt Portable for a Two-Panel Setup
4.8 Amazon buyer average
Best for: Buyers wanting two panels at once
Pros
- Two 400W panels
- Collapsible design
Cons
- Very sparse listing details
- About 35.3 lbs per panel
The 2 High Efficiency 400 Watt Portable listing bundles two EcoFlow 400W panels under the EF ECOFLOW brand. The specifications confirm 400 watts maximum power per panel, a two-count package and a high efficiency rating, while the description notes that the panel is collapsible and weighs roughly 35.3 pounds (16.0 kg).
That is almost the entire listing. It does not specify the connector type, water rating, cell type, dimensions or what cables and cases are included, so you will need to confirm those on the product page or with the seller before relying on it for a trip. The 35.3-pound weight matches the single EF-Flex-400 panel below, which suggests the same panel, but the listing does not say so directly.
This two-pack makes sense for van lifers and RVers whose power station can accept around 800 watts of solar input and who want to buy both panels at once. If you need the full spec sheet before you commit, the 2 x 400W Portable Solar Panels listing further down gives more detail.
No. 2 of 3 · Mhpowos
EF ECOFLOW 400W Portable Solar Panel for Everyday Van Use
4.2 Amazon buyer average
Best for: Owners of non-EcoFlow power stations
What the listing says
- 23.5% Highly Efficiency Solar Panel MHPOWOS 400w solar panel utilizes A+ monocrystalline solar cells, achieving an outstanding conversion rate of 23.5%.
- Compatible with Most Solar Generators 400W portable solar panel is compatible with a variety of power stations to meet your charging needs.
- Foldable & Portable Solar Panel Designed for portability and convenience, the 400W solar panel features a lightweight, multifold design with a zippered accessory pouch.
- Waterproof & Easy to Install With an IP67 waterproof and dustproof, the 400 watt solar panels are made for the outdoors and can withstand the elements.
- Design for Outdoor Activity Ideal as an RV solar panel, camping solar panel and outdoor panel.
- Please Note Some portable power stations have a maximum input power limit.
Pros
- Lightest at 27.9 lbs
- Many connector adapters
- Four kickstands
- Folded size listed
Cons
- Listing brand is MHPOWOS
- IP67, not IP68
Best for: Van lifers pairing with an EcoFlow station
Pros
- IP68 main body
- Adjustable carry case
- MC4 connector
- Monocrystalline cells
Cons
- 3 lbs to carry
- Efficiency figures differ in listing
The EF ECOFLOW 400W Portable Solar Panel (model EF-Flex-400) is the most fully described single panel here. It is foldable, comes with an adjustable carry case, and weighs 35.3 pounds. Unfolded it measures 93.1 by 41.7 by 1 inch, so you need a fair patch of open ground or roof to lay it out.
The panel uses monocrystalline cells encased in layers of flexible EVA and fiberglass, and it carries an IP68 rating, though the listing notes that only the main body is waterproof, not the connectors or cable. Output is 23 volts through an MC4 connector. When paired with an EcoFlow power station, the station’s MPPT algorithm handles charging. The listing quotes a 22.4% conversion rate in its features and 23% in the specifications, so treat the exact efficiency figure with some caution.
This ecoflow 400w portable solar panel suits van lifers and overlanders who already own an EcoFlow station and want a single, well-documented panel. For a deeper look at this panel on its own, see our EcoFlow 400W portable solar panel review. If 35.3 pounds is too much to haul down a trail, the lighter panel in the next section is worth a look.
From the notebook
400W Portable Solar Panel Foldable Solar as a Third-Party Option
Be aware before you click: the 400W Portable Solar Panel Foldable Solar charger is listed under the brand MHPOWOS, not EcoFlow. It appears in searches for EcoFlow panels because it is marketed as compatible with most power stations, but it is a separate product from a different maker, and EcoFlow’s own warranty would not cover it.
On paper, it is the lightest panel here at 27.9 pounds, with a folded size of 37 by 23 by 2.75 inches and an unfolded size of 91.9 by 36.8 by 1.1 inches. The listing claims A+ monocrystalline cells at 23.5% efficiency, a maximum of 31 volts and 12 amps, and an IP67 waterproof and dustproof rating. Four kickstands hold it up on flat ground, and a zippered accessory pouch stores cables. Included connectors cover Anderson, XT60, DC7909 and DC5521, with more listed in the features.
The listing honestly notes that many power stations cap solar input below 400 watts, so the panel will not always deliver its full rating. It suits campers with a non-EcoFlow station who want lighter carry weight and a broad set of adapters. Buyers who want a genuine EcoFlow panel should choose one of the other single panels.
From the notebook
2 x 400W Portable Solar Panels for Bigger Batteries
Best for: Doubling solar input for larger stations
Pros
- Two panels, one listing
- Self-standing, adjustable angle
- IP68 water resistance
Cons
- Weight not listed
- Folded size not listed
The 2 x 400W Portable Solar Panels listing is the better-documented ecoflow 400w solar panel 2 pack. Each panel is rated at 400 watts with up to 23% conversion efficiency, and the listing describes a robust multi-layered construction, a self-standing design with an adjustable angle, IP68 water resistance and a compact one-piece folding design. The connector type is MC4, and the part number is SOLAR400W-2.
The listing does not give weight, dimensions or folded size, and it does not mention a carry case or charging cable. Given the similar feature set, expect each panel to be comparable in bulk to the single 400W panel, but check before you plan to carry both at once.
Choose this pack if you run a large power station or a DELTA 3 Plus with extra batteries and want to fill it faster in a single sunny window. Solo travelers with a smaller battery will be happier with a single panel and less weight.
No. 3 of 3 · EF Ecoflow
400W High Efficiency Portable Solar Panel with XT60 Cable
4.9 Amazon buyer average
Best for: Single-panel buyers needing an XT60 cable
What the listing says
- Charge faster with high 400W solar in put
- Up to 23% conversion rate
- Durable, multi-layered materials
- Self-supporting with an adjustable angle
- IP68 waterproof rating
- One-piece folding design
Pros
- Solar to XT60 cable included
- Self-supporting stand
- IP68 rating
Cons
- Item count and specs inconsistent
- Weight not listed
The 400W High Efficiency Portable Solar Panel shares the same core feature list as the two-pack: 400W solar input, up to 23% conversion, durable multi-layered materials, a self-supporting stand with adjustable angle, IP68 waterproofing and a one-piece folding design. The key practical addition is that a solar to XT60 charging cable is included, which is the cable many EcoFlow stations use for solar input.
The listing has some inconsistencies. The description gives a 22.6% conversion rate and then up to 23%, mentions a 110V to 220V adapter and compatibility with electric vehicles, and the specs list the number of items as four. None of those are explained, so confirm exactly what ships in the box before ordering. Weight and dimensions are not listed.
This panel suits buyers who want a single EcoFlow foldable solar panel with the charging cable already included, so there is nothing extra to buy before the first trip.
From the notebook
Solar Generator DELTA 3 Series for a Complete Kit
Best for: RVers wanting panel and battery together
Pros
- Expandable 1-5kWh storage
- Up to 2200W with X-Boost
- 99% MPPT efficiency
Cons
- Heaviest overall setup
- Warranty terms vary in listing
The Solar Generator DELTA 3 Series listing pairs a 400W portable solar panel with an EcoFlow DELTA 3 power station. The battery side offers expandable capacity from 1 to 5 kWh, up to 2200W of output with X-Boost mode, and 99% MPPT efficiency. EcoFlow says it is designed to deliver up to 10 years of daily use before dropping to 80% of original capacity.
The warranty wording is inconsistent: the features mention a 5-year warranty for the DELTA 3 Plus and 12 months for the panel, while the description mentions a 10-year warranty for the generator. The listing does not say which exact DELTA 3 model and capacity ships in the base bundle, nor the weight of either piece. Check the variant selector carefully.
This ecoflow delta 3 solar generator bundle makes sense for RVers and home-backup buyers who do not yet own a power station and want a matched system. If you already have a station, buying a panel alone is the lighter, simpler choice. To see how a similar kit from another maker compares, read our guide to a portable power station with solar panel.
Before you choose
How to Choose the Right EcoFlow 400W Solar Panel
- Carry weight: The EcoFlow panels with a stated weight come in at 35.3 pounds each. If you camp away from the vehicle, that matters; the third-party MHPOWOS panel is lighter at 27.9 pounds.
- Your station’s input limit: A 400w solar panel for power station use only helps if the station accepts that much solar input. Two panels only make sense if your station can take roughly double.
- Cables in the box: The 400W High Efficiency panel includes a solar to XT60 cable. The EF-Flex-400 and the 2 x 400W pack list MC4 connectors only, so check you have the adapter your station needs.
- Kit or panel only: Buy the DELTA 3 bundle if you need a battery too; otherwise, a panel alone saves weight and space.
When deciding which ecoflow panel to buy for portable solar panel camping, favor the listing with the clearest specs. The EF-Flex-400 has the most complete data, while the sparse two-pack listing leaves the most questions open.
Questions people ask
FAQ
How much does an EcoFlow 400W solar panel weigh?
The EF-Flex-400 lists 35.3 pounds, and the two-pack listing describes each panel as roughly 35.3 pounds (16.0 kg). The other EcoFlow listings here do not state a weight.
Is the 400W Portable Solar Panel Foldable Solar charger made by EcoFlow?
No. Its listing names MHPOWOS as the brand. It is marketed as compatible with most power stations but is a separate product.
Are EcoFlow 400W panels waterproof?
The EF-Flex-400, the 2 x 400W pack and the 400W High Efficiency panel list IP68. The EF-Flex-400 listing clarifies that only the main body is waterproof, so keep connectors dry.
Will a 400W panel always produce 400 watts?
No. Output depends on sun angle, weather and temperature, and many power stations cap solar input below 400 watts. Rated power is a peak figure under ideal conditions.
Should I buy the DELTA 3 bundle or a panel alone?
If you do not own a power station, the bundle gives you a matched battery and panel. If you already have an EcoFlow station, a single panel or two-pack is lighter and avoids duplicate hardware.
Prices, specifications and the feature lines above are read from the product listing and can change without notice. Every score is the average rating Amazon buyers left for that item; nothing on this page is written from handling the product.
