Customer reviews from ecoflow
EcoFlow - 400W Foldable Solar Panel - Black
Average customer rating
4.8
(66 Reviews)
Rating breakdown 66 reviews
5 Stars
51
4 Stars
14
3 Stars
1
2 Stars
0
1 Star
0
96%of customers recommend this product.
(
25 out of
26)
Customer Reviews for EcoFlow - 400W Foldable Solar Panel - Black
Customer Rating
5
Love it
on March 1, 2024
Posted by: Say Watt
from Oklahoma
Frequency of use:Daily
Gender:Male
I set mine up on the roof of my house and use a 20ft extension. It hasn't moved even during storms.
I have one of the early Delta models, and it works great. I just need a bigger battery.
As the sun first rises, I only get 20-30 watts and peaks over 300 watts around noon.
Considering the panel isn't pointing directly at the sun, I'm impressed!
I have one of the early Delta models, and it works great. I just need a bigger battery.
As the sun first rises, I only get 20-30 watts and peaks over 300 watts around noon.
Considering the panel isn't pointing directly at the sun, I'm impressed!
Written by a customer while visiting ecoflow
Posted by: Collin46
from Post Falls, Idaho
Gender:Male
Verified Purchase:Yes
We have a class b camper van. On a recent trip during the summer heat wave we put out our 400W solar panel connected to our EcoFlow delta 2 and then plugged in our RV. Charged our delta 2 as well as our house batteries. We had all the juice we needed. The panels were heavier than i like but were manageable and well made.
Written by a customer while visiting ecoflow
Customer Rating
5
Good product for portable solar power uses.
on July 28, 2025
Posted by: Amature Radio Host
from Utah
Gender:Male
Performs well and as expected. It has a good conversion rate/performance. I have good sun exposure most days of the year and can recharge in 4-5 hours when 2/3's expended. The panel array is heavy and awkward for single person manipulation. The panel array gets warm as would be expected in the sunlight and so if laid out over vegetation that you care about, (lawn, etc) it will burn the vegetation - I have had the same issue with a generic tarp on the lawn. So I purchased an adjustable stand that folds up and that solves a lot of the issues.
Written by a customer while visiting ecoflow
Customer Rating
5
on August 17, 2025
Posted by: Kentucky
I bought mine a while back and am very satisfied with the overall performance of this thing . Another product tor be proud of .
Written by a customer while visiting ecoflow
Posted by: CAMartino
from Northern Arizona
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
These panels have far exceeded my expectations. I use these panels in conjunction with my Honda ES2200 to charge my Ecoflow Pro which in turn supplies power to my RV Trailer. The panels typically supply 250 to 275 watts on a sunny day leaning against my trailer. When laid out more flat to the ground I've seen as much as 380 watts.
These panels are heavy and a little pricey, but I believe it's money well spent and plan to purchase at least one more set..
These panels are heavy and a little pricey, but I believe it's money well spent and plan to purchase at least one more set..
Written by a customer while visiting ecoflow
Posted by: Rooster326
from Orlando FL
Gender:Male
Verified Purchase:Yes
Hoked up a single 400 watt panel. I live in orlando florida so sun is always available
With some adjustment it was pushing 300-325. I purchased a second panel but havn’t tried them in series yet. I hope to get 600-700 watts. I think it will do the job with an extra battery.
.
With some adjustment it was pushing 300-325. I purchased a second panel but havn’t tried them in series yet. I hope to get 600-700 watts. I think it will do the job with an extra battery.
.
Written by a customer while visiting ecoflow
Posted by: G. Reyes
Verified Purchase:Yes
Quality made product that will last for many years. Setting up was super easy with my Ecoflow 2.
Written by a customer while visiting ecoflow
Posted by: Mikee
from Old Town Fl
Gender:Male
Verified Purchase:Yes
We use this solar panel to recharge the Delta Max 2 instead of using a/c power, takes longer but it’s free power
Written by a customer while visiting ecoflow