Unusual starterless 2' gear (dimmable?)

Given to me by a friend recently, assumed it would be standard switch start but it has this Tridonic ECTH35 module fitted which looks to be for cathode heating & there's no starter so I assume it provides some form of voltage spike to strike the tube?

P.s. sorry for the terrible picture, this thing is rank so I've just chucked it in the shed until it dries out! To the right in the picture is just a standard ballast. You can see cable's to the left and right heading to the lamp holders.