Question about Walimex Wt-806

It depends. I don't really know what a bowens lightbox is, I guess it's a softbox. The answer is that in the studio you can probably use them but outside in the slightest wind they might fall over. You can put a stone or weights at the base to make them more stable too. But you should consider C-Stands to put the light above the person for the famous butterfly effect. With these, if you want a light above the person you will have the stand in front of the lens.