EMC, It's a class A device, which means they couldn't get it to pass Class B. Class A is for industrial use. Class B is for consumer use. Lidl sell into a consumer market, so this is a bit 'iffy'. In absolute terms, there isn't a huge difference between limits. According to the 'rules' this shouldn't be plugged into a domestic supply. (240V low voltage)It may cause interference to yourself or neighbours, but a bit impossible to predict what problems it would cause if any. If you have a pacemaker, I would take advice before using this equipment (seriously).
I guess it is for use on a supply which is locally derived from high voltage, so there is no direct link to public mains. Lidl have covered themselves by putting all the right words in the description. Worst case, If you buy it, it could screws up all your neighbours WiFi, Ethernet, power line distribution, people with pace makers dropping at your gate and aircraft falling from the sky, but I suspect it will probably be OK and the EMC failures are just small amounts above the class B limit. Declaring class A us usually the very last resort when you can't achieve Class B and you have run out of time to launch the product.
