I've never tried this product. But the website set off a bunch of red flags. Suspicions arose and that's why I'm here.
My electric bill is mild in the summer about $42.00 and that includes using two AC units by the way uses little electric, when it's hot and in winter about $200.00 using baseboard heaters along with a portable 110 ceramic heater to keep my feet warm.
In all my life, I've never heard of a device that would save on the electric bill. How could it? It doesn't add electricity for free. And since when did the electric become dirty and need to be cleaned?
I use Alexa and have wall plug adapters that unplug my devices when I request it such as a fan. This also includes my Singled LED lights that use so little.
I did buy an air fryer and that is a huge time saver along with less electric use. No more oven for me. Still use the stove top when needed.
Hot water heater is efficient, though the dishwasher did increase my cost by $2.00 for the heat drying process. But not used that often as washing by hand and using a drying rack is sufficient. I don't own a dryer but the small washing machine and a drying rack works well for a single person like me.
Turn off lights when not needed, use LED bulbs, upgrade to more efficient small cooking devices, Turn off everything not needed when you leave the home. Unplug unused devices such as a rice cooker.
Wear thicker clothing in winter and reduce the heat. Close doors to rooms that are not used during the day along with the heat source in winter.
Close drapes in summer to any direct sunlight as this will heat a room very quickly and reduce efficiency to the AC.
If you have to replace an old worn out device such as a window AC or oscillating fan for your home before it fails, buy in off season for better prices.
You are the one in control of your own budget, spending, paying bills, etc. Pay bills right away when you can and see what's left over. If you don't have enough for other things such as food or gas, you better rethink your spending and cut out the luxuries and skipping bills to make ends meet. That kind of budgeting doesn't work. It never does and don't spend more than you have by using credit cards. You will end up in more debt before the sun comes up.
I don't make much, but what I do make, I've been able to live comfortably and don't buy things that I can't afford.
If you don't have a savings that you can spend when the occasion arises or is needed, then you don't have extra money to spend. Period.