The Ernie Ball 2801 Flats Short Scale Group 2 strings are mainly tailored for semi-acoustic and electric bass guitars, but can also be slapped onto electro-acoustic and acoustic basses.
Ernie Ball's 2737 Slinky Cobalt 040-125 is a set of 5 strings for a 5-string electric bass guitar that deliver lots of output due to the extra magnetic attraction between strings and pickup.
This pack of Ernie Ball 2818 Regular Slinky Flatwound Short Scale strings will kit out any short scale electric or acoustic bass with the warm, round sound and smooth playing feel of flat winding.