These power saving plugs have been around for a while. They possibly started life as a genuine filter plug for softening significant mains transients, but then found a new scam market being sold as power savers, often sold using fraudulent claims of reducing your home electricity bill by a significant amount. (They don't.)

Things have taken a slightly darker twist recently, with adverts involving pictures and video of young kids, with fabricated stories of how they invented this miracle power-saving device, but refused to be bought out by "big-oil" so that everyone could benefit from their technology.
When these adverts have appeared on platforms like Facebook they have inevitably resulted in a flurry of gushing comments from people who have become emotionally involved with the story of youth heroism and have bought several units to support them.

In reality these units are probably being drop shipped from Chinese warehouses, which will also happily supply their long established product to you if you search on eBay for "power saver". The going rate on eBay is around £5 shipped (about $7). If you buy from the rogue marketers they will mark that up significantly if you even get the products. (Facebook has a terrible history of marketing scams where people have been duped out of their hard earned money.)

As mentioned in the video, you can bring down your home energy bill dramatically by understanding that the most significant energy costs are heat sources, air conditioning and equipment that runs continuously. By adjusting the house temperature down slightly and wearing warmer clothes you can save a significant percentage of your heating bill. Tracking down draughts will reduce the amount you spend on heating or cooling the outside air, and even basic attic insulation has the same effect as wearing a hat. It keeps the heat in or out.

The very best REAL energy saving plug you can buy is a power monitor plug that shows you how much power appliances are actually using.

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