The EcoFlow 400W Portable Solar Panel delivers 400W from a single foldable panel with an adjustable carry case that doubles as a stand. It weighs 35.3 lb and sells for about $650 to $750.
What you need before you buy
- A large power station that accepts 400W of solar, such as an EcoFlow DELTA.
- Space to unfold it in full sun.
- An MC4 adapter for non-EcoFlow stations.
How much it charges
In good sun, roughly 1.6kWh to 2.4kWh a day, enough to refill a 2kWh station or keep essentials running through a multi-day outage.
Not sure it will work with your power station? Read how to match a solar panel to a power station.
How it compares
| EcoFlow 400W | BLUETTI PV350 | EcoFlow NextGen 220W | |
|---|---|---|---|
| Typical price | $650–$750 | $599–$699 | $399–$449 |
| Rated power | 400W | 350W | 220W front / 175W rear |
| Efficiency | About 23% | Up to 23.4% | Up to 25% |
| Weight | 35.3 lb | 30.6 lb | About 15.4 lb |
| Best for | Fastest single-panel charging | Big BLUETTI stations | Lighter bifacial |
See my BLUETTI PV350 and EcoFlow NextGen 220W reviews.
Want to see other Solar Panels? Compare them side by side →
How I researched this: EcoFlow’s 400W panel product page and specs, the Amazon listing, and a video review from MakeUseOf. Prices checked October 30, 2026.
EcoFlow 400W Portable Solar Panel
The EcoFlow 400W panel recharges big power stations fast from one panel, but weighs 35.3 lb. Here is who it suits.
Product Brand: EcoFlow
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