This is a replacement Elinchrom Flashtube. Replacement of
flashtubes for Elinchrom flash head models earlier than Style S involve
loosening several screws on the flash head casing, and two screws at the
flashtube socket base. Newer models have "plug and play" flashtubes
that are easier to replace. With proper handling, these flashtubes may
last for tens of thousands of flashes under normal use.