Will this charge a non-EcoFlow power station?

Yes, in most cases. It uses standard solar connectors, so it works with many power stations that accept a comparable voltage and current, but check your station's input limits first.

How much power does it actually produce?

Expect close to the rated 400W only in strong direct sun with a good angle. Real-world output is usually lower, and shade or clouds cut it further.

It carries an IP68 rating, so it is protected against dust and water immersion. The connectors and cables should still be kept dry where possible.

Can one person set it up?

Yes, but it is heavy at about 28 lb and unfolds wide, so it is easier with two people or a flat, open surface.

What comes in the box?

The panel ships with its built-in cable and connector, and typically a protective carry bag. Check the listing for the exact included accessories.

Portable solar panels tend to drop during seasonal sales and bundle promotions with power stations. Compare current store prices against its recent range before buying.

Where can I buy the Ecoflow EFSOLAR400W?

2 stores we checked sell it, including Best Buy, Homery.

Ecoflow EFSOLAR400W

Last price we saw

$649.99at Best Buy, last seen Nov 8

Prices change often: ask the agent below to check today's price at every store.

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Ecoflow EFSOLAR400W

The EcoFlow 400W is a foldable monocrystalline solar panel built for portable power stations and off-grid charging. It folds into a briefcase shape at about 28 lb and is rated IP68, so it can handle rain and dust. Its 400W rating is the highest in EcoFlow's portable panel line, and it pairs with the brand's own power stations through standard MC4-style connectors.

Best forOwners of EcoFlow or other large portable power stationsVan and RV campers who want serious solar inputOff-grid and emergency backup setupsBasecamp users who can carry a 28 lb panel

Pros

400W output charges large power stations faster than smaller panels
Monocrystalline cells are efficient in less-than-ideal light
IP68 rating handles rain, dust and splashes
Folds for transport and has a built-in carry handle
Works with most power stations via standard connectors

Cons

Ecoflow EFSOLAR400W prices at every store

Best BuyNew
Out of stock
$649.99Free shippingVerified
Visit Best Buy
HomeryNew
Out of stock
$999.00Free shippingVerified
Visit Homery

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Ecoflow EFSOLAR400W price history

Lowest price we've seen: $649.99 on Nov 8 at Best Buy. Tracked across 2 stores since Nov 8.

What reviewers say

Owners of EcoFlow power stations report strong real-world charging, often well above 300W in good sun. The main complaints are weight and the space the panel takes up when unfolded.

What people mention

Charging speedPraisedOwners say it delivers high wattage in good sun and refills large power stations quickly.
WeightCriticisedAt around 28 lb, buyers find it heavy to carry and position alone.
BuildPraisedThe panel feels solid and the IP68 rating gives confidence in rain and dust.

Questions and answers

Will this charge a non-EcoFlow power station?: Yes, in most cases. It uses standard solar connectors, so it works with many power stations that accept a comparable voltage and current, but check your station's input limits first.
How much power does it actually produce?: Expect close to the rated 400W only in strong direct sun with a good angle. Real-world output is usually lower, and shade or clouds cut it further.
Is it waterproof?: It carries an IP68 rating, so it is protected against dust and water immersion. The connectors and cables should still be kept dry where possible.
Can one person set it up?: Yes, but it is heavy at about 28 lb and unfolds wide, so it is easier with two people or a flat, open surface.
What comes in the box?: The panel ships with its built-in cable and connector, and typically a protective carry bag. Check the listing for the exact included accessories.
When is it cheapest?: Portable solar panels tend to drop during seasonal sales and bundle promotions with power stations. Compare current store prices against its recent range before buying.
Where can I buy the Ecoflow EFSOLAR400W?: 2 stores we checked sell it, including Best Buy, Homery.