I agree with Rik...make sure it's UL, CSA or ETL certified. for an electrical item that remains plugged in and operating 12 hours a day or more it should be safety certified.
I've posted many times about the so called "CE" certification that many manufacturers use and its absolute garbage and doesn't have the strict safety standards required for this type of electrical device.
Sadly, the vast majority of marketplace sellers on Amazon (as an example) do not comply with Amazon's own policies regarding the sale of electrical items in which it states sellers are required to comply with local state or federal law regarding electrical items and in the case of most of the world, that is the UL, CSA or ETL certification. Unfortunately unless there is a formal legal complaint (like a fire), Amazon doesn't give a shit what gets sold on their site(s) because every sale is more profit!