1. slide on the Profoto Adapter onto the Stella Pro bezel and tighten with the included allen wrench.
2. Ensure that the Profoto Adapter ring is tight on the Stella Pro bezel behind the heat sink.
3. Slide the Stella Pro bezel into the Profoto OCF Speedring already attached to the Profoto Octa 2' softbox or any other Profoto softbox and center it over and around the Profoto Adapter and tighten the OCF Speedring.
4. Hand hold the Stella Pro or secure it on a light stand for a beautiful soft light for stills or motion work.