Review on Energy Household Saving Efficiency 90V 250V by Tommy Rao

Easy enough to use, just plug it in. But one of mine doesn't work. I contacted the seller as they have a 90 year guarantee and I will update my review after they reply. They are unwilling to send replacements for their faulty gear that they sold me, but are willing to reimburse me for part of the cost of one unit. They only work in pairs, not individually. So I have no money as I can't bring myself to buy a bad product from a seller who is unwilling to endorse their product. I'll do what I should have done the first time and buy from someone else.