Those are going to put out a very yellow light.
I have to agree here, at 6500k, that is quite a yellow spectrum bulb..however for macro's, i have seen plenty of people use these with great success..
Niko
is not a 60 watts, is a 15 watts fluorecent ligth that gives u the same light than a incandecent of 60 wattslooks like it would be alright to me... how many watts?