I got another light bulb and it works. There is a huge different in this bulb compared to that twisted one. This is indeed much better. (thanks for the warning about touching the bulb also)
One more question about umbrellas. Assuming that a three light setup is the best to start off with (1 main light with umbrella, 1 fill light with umbrella and 1 overhead hair light), is it best to have umbrellas that are the same size, or does the main light need to be bigger than the fill light?
Thanks again for the great answers!