I have been buying them constantly for years, every time I renew them, they have served me quite well, they are very complete and I am very satisfied with their price

They were installed by an electrician, to make sure about their operation. Meaning circuit safety, on/off switch, and wherever heat-shrink material was needed.
In less than an hour of use, one of them turned off, without me being particularly worried, thinking that there was not a proper soldering or something came off the contact. Today, when I went to the electrician to have a look at it, he told me and showed me.... the wires melted from the inside, it became a mess and I was lucky that it didn't catch fire. This happened because it is a very cheap construction overall. The wires are very thin, the double-sided tape is NOT 3M as the product shows on the page. Poor construction, everything is terrible. Be careful if you buy them.