I have a keen interest in moving my photography business out of the studio and more to locations.  There are many reasons for this.  To help in this matter, I wanted to upgrade my lighting capabilities.  Currently, I have studio lights and Speedlights.  The studio lights are large, heavy and require an outlet, but they put out lots of light.  The Speedlights are small, light and highly portable (4 AA batteries), but they only put out a modest amount of light.  What I wanted was something small, light, highly portable and puts out a lot of light.

The solution: Paul C Buff Einstein 640 lights, Vagabond Lithium batteries and Pocketwizard MC2 that allows me to control the lights from my camera.  The picture above was taken during a session for a new business, Battleforthebride, using two Einstein 640 lights and one speed light all controlled with Pocketwizard's AC3/MiniTT1.  One Einstein was the main light shooting through an umbrella, camera left, one Einstein 640 was used to light the background (low and behind the subject) and the Speedlight was used as a hair light, shot through a softbox.  

As I gain more experience with them, I will show more examples and comment on performance.  Thus far, I am happy but have only used them on a couple of shoots.