Sync up your camera and external underwater flash units with Fantasea Line's FA-1 LED Strobe Trigger. It eliminates the need for the camera's built-in flash to fire, thus extending battery life for longer shooting sessions while also decreasing lag time between shots, since you need not wait for the built-in flash to recycle. Additionally, keeping the internal flash inactive prevents heat buildup and condensation in your camera housing.
The FA-1 is compatible with any camera featuring a hot shoe connection, and can be installed anywhere inside any underwater housing with sufficient space to accommodate it. The unit features a cable with a connector that slides into the shoe. It connects to external strobes via multi-core fiber-optic cables, triggering them in manual exposure mode, and is compatible with most models on the market.