What do I do if my non-Ikelite housing has two bulkheads?
Some housings that have two Nikonos style bulkheads are not always wired correctly to utilize dual strobes with one strobe attached to each bulkhead. Dual strobes (one connected to each bulkhead) may not operate correctly if both bulkheads connect all five conductors to the camera. Five conductors from each bulkhead would allow either strobe to operate TTL, but not both simultaneously. One should have five conductors and the other connect only three conductors for dual strobe operation. We have seen Aquatica, Seacam, Nexus and Subal housings with two Nikonos style bulkheads wired with all five conductors connected to the camera, requiring a dual cord attached to just one bulkhead. The manufacturer should be able to tell you if their wiring is compatible with accepted protocol.