I have one of those 500 Watt and 250 Watt portable lights one is on a tripod with a hanging and clip attachment however I found when I used it my pictures often were blury. I supposed this was caused by the frequency of the lamp emmisions or something. I don't believe I was moving or that my subject was moving. Further proff is that pictures taken in the same setting with the lamps OFF resulted in steadier shots. I also noticed that you can diffuse the light with opaque plastic. Those lamps become very hot and personally I am scared of starting a fire by drapin a napkin or white paper over the light. Have you considered a very large flashlight? Or electronic lantern? Bsteph Bsteph