I have just received the product but it says "Premium -ALU-Line" on mine as in picture 3 which shows a different socket strip to pictures 1 and 2... According to what I read on the Brennenstuhl website, the Premium-Alu-Line has no overvoltage protection and on their photos there, unlike mine and picture 3 here, there is none to be seen... I'm a bit confused as to why the pictures on digitec show 2 different products, one of which you get by chance and one of which, according to the manufacturer, doesn't even exist in this form according to my research... Do I have all the advertised features of the Premium-Protect-Line on this one or not, which would determine whether I would have to return it?