Heunwa Electricity Saving Box, 90V-250V 30KW Power Saver, Energy Saver Saving Device for Household Office Market Factory(US Plug)

I bought 6 of these over 3 years ago and placed them around my 2600 sq. ft. home. I really didn't pay much attention to their effectiveness until I got my first electric bill for the month of July where it was always over $600.00 a month. The bill was just under $400. The next year about the same and just paid this years July bill of $328.30. All other months respectively were the same type of savings. My electrical hours of use has not really changed over the years. Be careful not to compare one month to the next when looking at costs, next month might be hotter or colder. Be advised that these units will cover the entire wall outlet, not allowing for another plug in that outlet. In one location for my TV, I plugged a very short extension cord in and put this energy saver device on it and my TV in the other outlet.Not all energy companies charge you in the same way, however most all charge you more per Kilowatt hour as you usage goes up. My high end Kilowatt hour usage cost me 50% more than my low end usage This energy saver device does not lower your "usage" by say 30%, but it does lower it enough get rid of some of that high end costs that cost you 50%' more, saving you that 30% in "cost" much like some of the solar cost savings.

The media could not be loaded.  Nothing I like because it is not true that this plug will save you money. It’s just bunch of BS. Been using them for 3 months now and in my sons house too, the Elwood stillVery high. Do not waste your money. They don’t do anything. Few of them won’t even turn the lights on.

Make sure you REALLY understand how these work before you purchase. Each one is supposed to go to an outlet that has other devices already plugged into it, per the instructions. BUT, the problem is, it takes up ALL the space on the outlet, unless you use a power strip where it ALSO takes up multiple sockets. Very poorly designed…Having it plugged into the outlet alone DOES NOT WORK. I review our electric usage and billing monthly, and without a doubt would be able to tell if there was ANY difference… anything that would have hinted towards a return on this investment.Even when re-reading the instructions stating, “plug into any sockets at home” we got nothing. Purchased a six pack of these devices, which one has already stopped working. Less than 30 day return (via Amazon) so stuck with the junk. $50 we’ll never see again.

The product was easy to use. Weare waiting to see if it increases the efficency of our electrical system.

didn't work! and i gave it a month - bought 6 & put all in key places. didn't show any change at all -my bill actually was appx 15 dollars higher. appeared to be very cheaply made as well.

I plugged my Electric savers in last month. Unfortunately, it will take about two months to notice the difference. one of my friends told me that she noticed a significant difference in her bill. By next month I will be able to provide better inputs

Marketing not clear. I thought I was ordering three plug-ins. I received three containers of six.

2 of the 6 did not work when received