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

  • Based on 2,287 reviews
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Availability: 20 left in stock
Fulfilled by ECOFLOW Direct

Arrives May 7 – May 9
Order within 1 hour and 35 minutes
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 7 – May 9

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.

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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

  • Heavy solar panel, performed above 80% efficiency, dependable solar panel
Size: 220W SOLAR PANEL
The media could not be loaded. This is my 4th solar panel that is larger than 100W, 2nd one that is rated 200W or higher. EcoFlow 220W solar panel is one of the few bifacial solar panels in the market. The front is made of 220W solar panels, and the back side has 155W panels to catch ambient light. The extra back solar panels add overall weight. The solar panel is weighted at 20.9lb. It is not too heavy but hard to setup when working with 4 large panels and with hurting hands. It is not hard to setup and point the solar panels to the sun at the right angel, but to make it easier I also bought EF solar angle guide (ASIN: B0B3J3B2W5) to help. I have setup the panels early in the morning and also at noon time. In SoCal, the temperature in June-July ranges from mid-70’s in the morning to high 90’s Fahrenheit during the day. I can consistently charge my EF Delta mini (ASIN: B09C8GCP8F) at 180-185W on a clear day. Sometimes it would produce burst output of 196W, but does not last. The temperature doesn’t seem to be a big factor. I am not sure how much energy is product from the back side of the panel since EcoFlow only advertises this solar panel at 220W and not the combining wattage of front and back. The efficiency of this panel then is about 82~84% which is within the expected range. In Ecoflow user discussion groups, some users are able to achieve above 200W. I have tried several weeks by position the solar panel at different time, angle, reflectors, and with the help of solar angle guide, but nothing helped to achieve close to 200W. I think it is probably due to the air quality of the area. With a slight haze in the sky, the output will drop 10-20W. The only way we can get a totally clear sky is after the rain. Ecoflow 220W solar has performed within the expected range. 5-star at this time. ... show more
Reviewed in the United States on August 6, 2022 by HolyCow HolyCow

  • 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.

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