Narrow Width DC12V LED Strip 2835 120/240led/m 5 Meters Flexible Strip.
For this item I did a huge mistake. I was, in fact, trying to buy a narrow tape (4 mm), with 240 leds/meter, which I guess does not exists. It was a bad interpretation of advertisement and so I have received a tape with 9.5 mm. My fault ! In all the cases, I was able to use it, even so.