I am confused by the question. As I understand it (perhaps not very far) the IKE strobe has only an electrical sync cord connection. Adding the IKE fiber optic converter will allow for triggering by fiber optic but offers NO TTL ( This adapter is a manual exposure (non-TTL) trigger only.) so no TTL possible. It will fire however from LED triggers assuming you can get one that fits in the housing. Hedwig's will fit and should work.
The fantasea version appears to be (40.5 x 45 x 20.5 mm) big so you can measure to see if you have that space above the hot shoe.
If you move to other strobes the cables will be the same.
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