Broncolor is known by professional photographers and demanding enthusiasts the world over.  My first experience was a very long time ago with a product called the Broncolor Hazy.  If I recall correctly, it was similar to today's Hazylight, basically a flash modifier simliar to a softboxbut rigid.  The light as I remember it was beautiful, but for a number of reasons I ceased having the opportunity to work with Bron products for a very long time.