This pane has been my go to panel when charging my devices. i average around 375 t9 384 watts which is very good. i now own three of these panels and i would highly recommend them to anyone looking for a large foldable panel with this much solar output. Do not just take my word for it try one and see why I love this panel so much.

Ordered it as soon as it became in stock again. Took a while as it shipped from Hong Kong. Packaging was damaged but luckily the panels were not. The panels are heavier than I thought they would be. Works very well to recharge a standard delta unit - generating max of 200w by lying flat in morning sunlight. Took about 1 hour to go from 86% to 100%.

I am very impressed with the Echoflow foldable solar panels. Well made, meets or exceed all specs. I like that the panels are built for the Echflo pro product and I don't have to gerry-rig 3rd party solutions..Be aware that they are soldi built which makes them heavier than other similar panels.....just goes with the territory if you want quality..........In-addition.....I am always impressed with the customer support EchoFlow provides....I know I can always get an answer to my questions either through customer support line or the EcoFlow Delta Series Group, face book page ..I highly recommend all of the Echflow product and anxiously waiting for new products that can augment my home power needs..... thank you very much!

The case to be used as a stand is a joke. I couldn't get it to work for me at all. I opted to just lay the panel flat on my back deck. The sun hits my deck from around 9am until 6pm. It is July so I'm sure that will change, but for now it is working for me. With all that said and done, I still am able to produce up to 310watts. I'm very happy with that. My TV, and my gaming laptop and 2 fand and 2 phone chargers only pull 170watts. So I am able to game and charge other items and have no worries of using more power than I am producing..

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..

Big. Fairly heavy….but yea, portable. Panel Flexes back a bit when using the case as the stand (all there models do, I have the 400, 220, 160, and 110s). Typically get 300 watts laying flat and not adjusting. Happy enough about that. Running two in series I have seen 650 as a high, again flat and not accounting for tilt and angles (and they are fairly dirty).

I wanted to be sure I had more than enough power going into my Delta Pro and Extra Pro Battery, especially if I am on the move or need to power my 3D printers for an outdoor event. Leaving the panel out in prime sunlight made it charge the batteries as I was 3D Printing. This means I was 3D Printing with ZERO CARBON EMISION! That's amazing!! I'm seriously considering making my whole business run on ECOFLOW Batteries and Solar Panels from this one experience alone.

I purchased this item a few weeks ago, but have not had the opportunity to use it yet. I am a novice camper. I can consider myself a first generation camper or explorer in my family. But even though I only have a few camping nights under my belt, I was impressed with the information that I was exposed to online from the reviews of other customers and fellow campers. I really enjoyed the idea of winter camping and I am sure that the solar panels in conjunction with the EcoFlow Delta 2 which I have also recently purchased will be a great combination. I am planning on creating my first YouTube video which will consist in the unboxing of the 400 W solar panel from EcoFlow as well as the EcoFlow Delta 2. As part of a winter camping video series based on New Jersey’s state park campgrounds. I am very eager to see the results of both products. Hopefully, I will inspire other family members to enjoy the beautiful outdoors as well as the different EcoFlow products.

You know how you bump elbows with someone on the sidewalk and they put a little brainstorm in your head, well thats what led me to buying the Delta Pro and the "Extra Battery" .. I use it exclusively for charging my Tesla (I don't have a garage, or access to electricity in my carport) .. Perfect solution for everyday driving for me ...

Great panel with performance that out shines other 400 watt panel systems. EcoFlow backs up its products with excellent customer service and rapid feedback on any questions or issues. This is the solar panel to buy for its ease of mobile deployment, power, and durability.