Search  for anything...

EF ECOFLOW 400W Portable Solar Panel, Foldable & Durable, Complete with an Adjustable Kickstand Case, Waterproof IP68 for Outdoor Adventures

  • Based on 1,374 reviews
Condition: New
Checking for product changes
$1,199.00 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by EcoFlow Inc.

Arrives May 25 – May 29
Order within 24 seconds
Available payment plans shown during checkout

Size: 400W SOLAR PANEL


Features

  • [High Performance] With a 400W power input, this solar panel can provide your power station with a significant amount of energy with outstanding efficiency.
  • [Extremely Portable] The EcoFlow 400W Solar Panel is foldable and comes with an adjustable carry case. Weighing in at only 16kg (35.3lbs) it can be easily packed up and carried with you, no matter where you go.
  • [Weather Proof] This 400W solar panel is built to withstand the elements. Its made from layers of flexible EVA and tough fibreglass to ensure durability and mobility. It also comes with a IP68 Waterproof rating, meaning it is dust and water tight.
  • [Market-Leading Technology] Designed with Monocrystalline cells, the EcoFlow 400W Solar Panel is able to generate more energy than standard solar panels. Its high transparency allows for a high energy conversion rate.
  • [Astonishing Efficiency] When paired with an EcoFlow power station, the 400W solar panel utilises the MPPT algorithm to achieve optimal efficiency rain or shine. Where solar panels are concerned, its conversion rate of 22.4% is astonishing.

Brand: EF ECOFLOW


Material: Eva


Product Dimensions: 93.1"L x 41.7"W x 1"H


Item Weight: 35.3 Pounds


Efficiency: 23%


Brand: EF ECOFLOW


Material: Eva


Product Dimensions: 93.1"L x 41.7"W x 1"H


Item Weight: 35.3 Pounds


Efficiency: 23%


Connector Type: MC4


Included Components: Bag


Maximum Power: 400 Watts


Item Weight: 35.3 pounds


Manufacturer: EF ECOFLOW


Item model number: EF-Flex-400


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 25 – May 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good power from a portable unit
Size: 400W SOLAR PANEL
I bought this panel along with an Ecoflow Delta Pro so that I could power my garage related appliances and electronics. I am currently running my garage refrigerator, a couple of battery maintainers for my cars and a motion activated light that comes on when I walk into the garage. The panels does a good job of charging my Delta Pro on most days and even charges a bit on hazy days, but of course not as much. It's winter time now and the sun is low in the horizon and shines fewer hours than in the summer so I'm thinking that I will be able to connect more things to it once summer rolls around. So far I am very pleased with its performance and I think it is only going to get better. The panel is portable but it does weigh a little bit due to its robust construction. I prefer that it is tougher and a bit heavier than lighter and flimsier, especially if it is going to moved about from place to place. It's not exactly cheap, but then you do get what you pay for and this is worth the price. ... show more
Reviewed in the United States on December 8, 2023 by J. L. Fuentes

  • Just in time
Size: 220W SOLAR PANEL
The ECOFLOW 220 watt bifacial foldable solar panel, ECOFLOW River 2 Pro along with ECOFLOW’S Wave 2 with add on battery, proved to be an absolute game-changer during Hurricane Idalia. Having a portable solar panel during a hurricane is a reassuring and practical choice for emergency preparedness. When Hurricane Idalia struck our area, the portable solar panel proved to be an invaluable asset. Its compact and lightweight design made it easy to set up, even in adverse weather conditions. Despite the looming power outage, we were able to harness the sun's energy and charge essential devices. This extended our ability to stay connected, receive weather updates, and communicate with loved ones. The portability of the solar panel allowed us to position it for maximum sunlight exposure, ensuring a consistent supply of electricity. It became a reliable source of power for charging phones, operating small appliances, and running emergency lights. One of the standout advantages was its sustainability. While other power sources fuel dependencies or technical issues, the solar panel kept performing, reducing our carbon footprint and providing a sense of security. In the aftermath of the hurricane, the solar panel continued to be a valuable resource, ensuring we had access to essential power as the recovery efforts took place. Having a portable solar panel during a hurricane demonstrated the importance of self-reliance and sustainability in times of crisis. It's an investment that not only eases the immediate challenges but also contributes to a more resilient and environmentally conscious future. ... show more
Reviewed in the United States on October 20, 2023 by EatWater

  • Quick review - ECOFLOW 220Watt Bifacial Foldable Solar Panel
Size: 220W SOLAR PANEL
What I don't like - I don't like using the case as the stand. It isn't flimsy, just needs some further refinement. But it works, and as a carrying case/stand, it does ok. What I do like - Other than the case/stand, which is minimal really and not anywhere near a show stopper. I really like these panels. For 220w bifacial, they aren't really heavy or large. Can be stowed in campers easily. I have a Rockwood A-Frame I will be using these on and they should work and stow very nicely. The panels are very well built and sturdy. I tested them in mid February here in Ohio on a sunny day. Was able to charge my EcoFlow Delta 2 from 50% to 100% in several hours running at a consistent 180-205w watts. Running 205w on 220w rated foldable solar panels in February with the low angle of the sun, that is pretty exceptional I think. I can't answer about weather proof just yet as I haven't had these out for an extended period of time. However based on initial testing and general use and appearance. At this point, I don't see any issues with leaving them outside in the weather. ... show more
Reviewed in the United States on February 21, 2024 by Dirk S.

  • Great Quality Solar Panel. Rugged Construction. Carry Case Too Heavy. Alternate Support For Panel.
This is a very well constructed panel that is relatively lightweight. I wanted something that could handle the elements and would be easy to setup. In my testing the panel is very consistent and produces right at 60 watts. As shown by other reviewers the case is setup to act as the support when using the panel. There are some downsides to this since you may not want to place the carrying case in the mud or in the rain or worse it sails off if the wind lifts it. In the pictures I have shown a cheap but effective way to support the panel. I pressed two small pieces of bamboo into the ground and I secured the panel to the bamboo using Nite Ize gear ties on the top panel's grommets. On the ground I used some tent stakes to further secure the panel to the ground. For me the biggest downside of the carry case design is that it weighs 4.4 lbs. Coincidentally the solar panel itself weighs 4.4 lbs. The combined weight of both the case and the panel matches that of a Renogy 50 Watt Glass/Aluminum Traditional Frame panel. The reason the case weighs so much is because there is a thick sheet plastic that spans one entire side of the case which gives the case rigidity when used to support the panel. I would rather carry another panel to produce more power than a heavy case. In the end I would recommend this panel for anyone that wants a well constructed and performing panel given that you may need to improvise a better way to support and carry the panel. ... show more
Reviewed in the United States on March 13, 2022 by Jimmy Jimmy

Can't find a product?

Find it on Amazon first, then paste the link below.