They are called Low tension, but I think it's just because of light gauge.
Thomastik JF344 suites me better with both sound and feel.
Out of the box the strings was kinda ''sticky''. I cleaned it with my GHS Fast Fret, and it was better then.
Also, out of the box, the E string was different sounding then the other strings - some kind of a dull sound that the other strings didn't have.
I put my old Daddario ECB84 back...