The Vorlon fighter was the Vorlons' smallest known vessel and only known type of fighter.
As with most Vorlon ships, very little is known about it's full capabilities and since they all appear to have been taken with the Vorlons when they left for the Rim, it's even less likely that any new information will be forthcoming.
They appear to be able to create there own independent jump point into hyperspace. Fast, powerful and in numbers, these ships have been seen to be capable of overwhelming and destroying a Shadow Vessel. 
"With the petals, I wanted to create the feeling that they were somehow connected to some sort of ethereal force that was outside human knowledge. They were like receptors picking up the energy and using it for propulsion."