Portable strobes combine the better of two worlds into a single entity; bringing the power and control of studio lighting together with the flexibility of speedlights or camera-based flash systems. Travel strobes are mainly used for location lighting situations, but can also prove to be a great all-around lighting system capable of fulfilling many studio-based tasks as well.
After cameras and lenses, the third slice of your wedding gear triad is your choice of lighting gear. The most basic system revolves around a dedicated TTL (through the lens) flashgun mounted on your camera’s hot shoe (or preferably on an adjustable flash bracket).
With the right tools, outdoor wedding photography can be a nice contrast to the more formal, controlled-light look of photographs taken within the confines of a catering hall or other wedding-centric indoor location.