Pretty clever: The EcoFlow 220W solar panel can generate electricity on both sides.This brings little extra benefit, but also does no harm.Solar module is the same as solar module?Are you kidding me? Are you serious when you say that!EcoFlow has managed a real coup with the foldable 220W solar panel.With the "bifacial" (two-faced) module you can generate solar power on both sides.And a lot of power, as the test shows.And the benefits don't end there:As always, the EcoFlow 220W solar panel is used on a small table on my south-facing balcony - and it didn't have an easy time during the test period.The weather is clear to cloudy.The sun comes out all the time.But then the panel delivers a high yield almost consistently.When the sky is blue, the connected power station Delta Mini always reports an input of over 150 watts.Behind bright clouds: still constantly over 40 watts.In other words: The quite large panel also delivers.Except for dense clouds:It is surprising that the display actually goes down to 0 watts here.I would have expected at least 10, 20 watts from the panel.The solar module is not even as big as expected.It measures just a little bit more than the EcoFlow 160W solar panel, which I also use from time to time.However, the 220W solar panel is significantly heavier.Despite the practical carrying bag, which can also be used as a stand, the panel is no longer really portable with its own weight of 9.5 kg.Especially since together with the case and the permanently integrated cable, it weighs a total of 14 kg.The 220W solar panel weighs more than the matching power station EcoFlow Delta Mini (11 kg), and you will wonder twice if you still carry both with you to the campsite.Quite in contrast to the EcoFlow 160W solar panel, which is only half the weight, and which nominally does not even generate that much less power.The panel also stands securely on its own and is also reasonably stable when leaned against the wall at an angle.However, due to the high dead weight, which is also caused by the use of hardened glass, the lower edge warps quickly:Also, the fold lets me know quickly that I've used it:The fact that the carrying case that comes with it also serves as a stand is practical.However, the fact that you have to use the supplied snap hooks so that the panel stands securely makes setting it up a little more difficult.The welded zippers are beautiful:I can carry the panel easily using the handles on the outside.Nevertheless, in my opinion, the competitor Jackery has solved the carrying and stowing a little better with the integrated carrying handles in the Jackery SolarSaga 100:I actually find the small brochure supplied, which serves as the operating instructions, to be very clear and helpful.There you will also find out what the optimal angle of inclination for the solar panel is depending on the time of day, which of the two light-sensitive sides is actually the front side (the one where the cables hang out) and that the yield can drop by 13 percent in high summer heat.The only downside to the mini manual is that it is only in English (as well as Chinese and Japanese).I had to look up some of the technical terms.Or do you know by heart that "junction box" means "connection box"?Incidentally, the panel outputs are MC4 connectors, which are the quasi-standard in solar technology.If you buy an EcoFlow power station, an adapter from the manufacturer is included.You will also be able to connect the EcoFlow 220W solar panel to other solar generators with the appropriate adapter.A look at the technical data reveals that the overall package is quite heavy:What the technical data does not reveal here: EcoFlow uses hardened glass, which allows the panel to work even at an operating temperature of 150 degrees.The glass also explains the comparatively high weight.EcoFlow also writes that the panel is around 10 percent smaller than comparable high-performance solar modules.You are welcome to post the message under “Marketing”.But it's true: EcoFlow doesn't waste a lot of space here and the panel still fits very well on my actually small balcony.I am particularly happy when I turn the back of the panel to the sun for the first time.The power station indicated a total of 150 watts of input!From 155 possible watts, as manufacturer EcoFlow writes in the technical properties.But is it of any use in everyday life that both sides of the panel can generate electricity?I'm a bit skeptical, but I also say: it doesn't do any harm.In the test setup in front of my large window front, I covered the front under a blue sky and then measured the amount of electricity coming in at the power station.The short answer: nothing.The long answer: Of course, there would be better conditions in which the back could produce something extra.For example, if you place the panel in front of a mirrored front.The panel itself is translucent between the individual solar cells.And if you leave some space to the mirror front, some sunlight can also reflect and photons can hit the back.In a graphic on its own website, EcoFlow describes how, depending on the background and surface, up to 25 percent extra performance can be achieved:Then of course the question is: What is the panel leaning against if not directly against a wall or an object?Again, the answer is clever: the included case, which doubles as a stand.EcoFlow has thought along here: Unlike the cover of the EcoFlow 160W solar panel, the inside is lined in reflective white:Strictly speaking, you could also partially place the 220W solar panel in (reflecting) water, for example in a paddling pool.According to EcoFlow, the surface is permanently protected against submersion in water according to the highest IP68 standard.Not, however, the junction box from which the cables hang out, and of course not the cable contacts themselves either.Make sure they don't come into contact with water!Last but not least, EcoFlow also speaks of the same efficiency on its own product pages for the 220W solar panel and its little brother, the 110W solar panel.In both cases, it is pleasingly high at 22-23 percent - but it is the same in both cases, even though the 110W panel can only generate electricity on one side.Well done!The EcoFlow 220W solar panel is of high quality, stable and powerful.It's not even overly large.The fact that you can generate electricity on both sides is a great extra, even if you have to find the necessary conditions first.The only real disadvantage is due to physics: The sheer size and the high-quality, built-in tempered glass make the whole package heavy and therefore not quite as mobile despite the small folding size and the still handy carrying case.Fresh daily at 5 p.m. in the mailboxChanges possible at any time via the subscription management - other topics availableFurther information on the use of your data for advertising purposes can be found in our data protection declaration.Check your inbox or spam folder to confirm your subscription.Select topics - fresh daily at 5 p.m. in your mailboxEURONICS on social networksPlease be patient.We review your comment before it appears on the site.We delete spam comments, advertising and 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