Their products are shall we say not the quality they imply. I ordered and receivers with tracking a solar hat fan to cool myself but when it's clipped onto the hat in full direct California summer sun it barely puts out a puff of air. The solar panel is undersized by probably a factor of 2. Of course they never made direct claims of effectivity of this fan to actually cool. Bad on me for not being the more educated consumer I usually am and being schepticle enough to question the all important tell tale of scientific measurements being missing. In this case there should have been a stat listed of airflow in cubic feet or meters or inches or centimetres of air per minute given an average sun exposure of so many lumens or nuts or something. We're it a more expensive item I certainly would have been looking for those figures and demanding them f the weren't published before buying. Time to tighten my standards again! I would have been cool paying more for a larger sized panel that could power the fan adequately. Based on other people's reviews of shady business practices and products I would not risk ordering from them again... because all their products show potential for being lame things that don't really work like they say they will. These are all failed or ineffectice products that couldn't be sold in person.because people would rapidly judge the products don't work as stated and demand their money back. Once screwed never again. Thanks stuff"nice"... (filth!). In this note for the same reasons above I wouldn't recommend ordering from the online auction site dealdash.. they too sell bad quality ineffective sham products like fake or badly working eWatches. Buyers: beware.. be more aware in fact. The scans are getting quite elaborate and many times look like legitimate nice products in photos but read buyer comments and go to outside scam review sites like this one before clicking buy! Don't get burned!