I bought 2 pieces of socket adapter with switch directly from Amazon and all is well. Therefore my advice: Before you buy for 50 cents at a supposedly cheaper provider, you prefer to order directly from Amazon. Then you also have a guarantee that the product is of Hama. It comes in a welded-in transparent plastic packaging and has once again on the outlet adapter has a sticker with the name of Hama and specifying which switching capacity of the article.
For the two outlet adapter that I have in operation, I can mention only positive. They function properly, fit nicely into the wall socket and keep the plug of the device securely!
Another advantage when ordering directly from Amazon: If the item within the warranty period of 2 years break, Amazon usually repays the full purchase price, because the repair is not worthwhile. But you have to pick up the bill for it!