ALLPOWERS SP033 200W Portable Solar Panel Foldable, 23% High Efficiency Solar Charger with MC4 Connectors for Power Station, RV, Camping, Home Use, Compact Folding Solar Panel（SP033-200W

I have the Allpowers 140 watt solar panel that is similar in design to this 200 watt panel. the major differences other than output power, is the build quality. The 200 watt panel is more rigid when setup the panel does not sag or droop nearly as much as the 140 watt when using the kick stand legs. Those legs are also different, on this panel the legs are slimmer and they snap off completely if you don't want to use them. I don't think I've used them correctly yet but I did use them while this panel charged my power station and they held fine on my lawn. 2 things to note: first, this is purely a solar panel, it has to be attached to something to be useful, it has no built in charging ports for any USB outputs, it must be connected to a compatible power station, charge controller, or other similar device to be useful. The Second thing to note is that the cables are short, and are unlikely to be long enough to position the panel to catch the best sun and to connect to a device that is not very portable. I use 2 of these along with one 140 watt panel all connected in parallel in a mini "solar farm" I had no issues with this setup. I did use a multi meter to check the output and found that the panel was producing almost exactly the power it was rated to produce, of course, like all solar panels, when there is a load the output power drops so it is unlikely that they will produce 200 watts of power while doing actual work. This rated vs actual usable power is extremely common with solar panels and is not an indication of any mis-leading or false advertising. Solar panels are rated under very specific conditions that are unlikely to happen in real world use, but this rating method makes it easier to compare and shop among different brands and sizes. I don't use panels like these in series because there is more potential to damage the panels when used in series. Also, Allpowers recommends using no more than 3 of these when connecting in parallel. Overall, I like this portable solar panel, it's just a simple portable folding solar panel and it works, I'll likely buy one more in the future to complete my mini solar farm.

I did a test on whether or not these solar panels would be able to charge up my Eco Flow River 2 portable power station on two different occasions. First was during a cloudy day where sun was starting to peak, and the other was during a fall afternoon.During the cloudy day, the solar panel was not able to produce any charge basically. My Eco Flow did recognize that there was an input feeding into the unit, however it was not even enough to generate 1W of energy.During the sunny fall mid to late afternoon, the solar panels was able to generate on average 130W to charge my Eco Flow from 80% to 100% in roughly 35 min.I like that the panel is foldable and you can carry it like a suitcase. It does have some kick stands that are held down by velcro and there is one kickstand per panel. However it does take some getting used to when you first unfold the panels and try to deploy the 4 kickstand. You almost have to do a balancing act with the entire panel set and one by one open the kickstands. The kickstand are not metal, they are like some kind of thick cardboard wrapped in the same type of fabric material that the backing of the solar panels are made out of. Not sure how well they will hold up in windy conditions.It does come with one extension cable with the same XT60 connector that my Eco Flow uses. There is another cable that allows for universal laptop type plug connectors to be used and the kit does include about 5 different sized laptop style connectors. The cables extends to about 2 ft, so you will need an extension cable if you need to run the wires to a further location.Hopefully we'll get another CA heatwave so I can see if the panels can actually output close to the 200W advertised rating.

Item received seems to be of good quality. They no longer include the MC 4 cable. It is not on the ad but is in the owner's manual. The company responded quickly and offered a rebate for the the price of buying a cable. Great customer service.

So I needed a solar panel to charge my device Echo River Pro and with so many options I decided on this set. I really didn't know what to expect? So I monitored the charging process very closely.The River Pro told me exactly what was going on which was really cool and the panels worked great. My only thing is? I wasn't getting a full 200 watts but that may have been due to a few things? Like a slight cloud issue or a tree limb and or the angle that I had pitched? It still broke the 160 level which made me happy so I'm going out on a limb here by saying, I'm sure it will indeed hit the 200 watts on a good clear day. Update: Never got to 200 watts but charged with lower and watts. 180 the very first 160 the second and now on a beautiful bright sunny day? 123 watts. SO at the rate it'll be about useless the next couple of times I use it. Don't buy it. My window to return it was in march and unless you use it every day? How's one suppose to know? Sad POS.