Keep in mind that its more than just a power difference. A hotshoe flash is a focused lens. The canon is capable of zooming in and out, but has a limit of spread on the wide end. The Alien bee is a bare bulb studio flash, meaning the light is pretty much unrestrained without a modifier. This allows you to work with significantly larger softboxes, or the plm system. With a hotshoe flash any softbox bigger than about 28 inches and you begin to lose efficiency.
all benefits of a studio flash. Well said.



