Joan,
We were looking at two different pages on the 1000bulbs site. I found the page you referenced and yes those bulbs will work for you at 5100K. A single 42 watter will throw plenty of light if a reflector is used. I suspect the problems with your reference photos are with the settup of the camera....shutter speed may be too fast, f-stop too low, iso number too low. Hope this helps.
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