The price of solar panels can vary wildly, often prompting the question from those on a tight budget as to whether it is worth the crap-shoot of trying their luck with the likes of Ebay panels.
Luckily there is some basic math you can apply to situation to cut through the BS figures claimed by the manufacturers. In this video I take a look at the Mobi Outdoor MB-FLES-MN03 400W flexible solar panel in ideal solar generation conditions to show that while the actual output is no where near the manufacturer claimed output, it is very close to the expected output from a basic rule of thumb calculation.
Ultimate question being, whether or not these panels are complete trash. In my view they do represent outstanding value for money (at least initially) for my particular circumstance. That is as a supplementary power source only while staying off grid for more than a few days (so used maybe half a dozen times a year). If these were to be for a permanent installation used daily, I most likely would invest in name brand panels that had the testing data to back their claims.
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