Plafonnier encastré à 1 lumière DEL à intensité variable Hyde Park

I bought three of these wall lights (HYDE PARK brand): Two flicker non-stop and are very dim, the third light does not go on at all. Clearly very defective merchandise. Our electricians spent a lot of time putting them up and trying to get them to work. With cost of lights and our electrician's time, we lost $800. They were on clearance (but still not cheap !!!!). Even if a product is on sale, it needs to be functioning, correct? Or at least say they dont work, lol! Not good.