I’ve had a set on one of my jazzes for about 6 or 7 years now, I took a chance on them as they were about £10 at the time, imo they are pretty good strings, I don’t know what tension they are but id say about the same as my labella 760FS and not as low as my LTFs, they are not a bright flat like TIs , more warmer sounding but not dull ,mine have mellowed really well over time and still sound good