City Utilities of Springfield said, in exchange for a free dinner, a group is selling a "power conditioner/surge protector" that allegedly saves residential customers money. CU officials say these "magic black boxes" do not provide any value to consumers and are very expensive. The salespeople usually require you to sign up for installation while at the dinner. Once the devices are installed, the businesses offer no contact information.
These "new" devices claim you will see a 20% or more energy reduction, with little effort on your part. But CU said they rarely provide results and are too good to be true. Anyone who’s approached with such an offer should contact CU to find out if it’s a scam. on your part. Unfortunately, they rarely provide results and are too good to be true.