We purchased 2 Hampton bay wall sconces. Both sconces have a silver sticker on the front of the sconce with a warning about maximum wattage, etc. Anyway I have a problem with the sticker. It leaves a very sticky residue that is impossible to get off. I have tried rubbing alcohol and Krud Kutter and neither are working. As a matter of fact, the finish is rubbing off. Why do they put those stickers on the front anyway? I am so frustrated!! Any thoughts? Thanks!