I use a total of 14.5W LED for my rooting area, thinking 1x 45w CFL would be more then plenty
The midt section of this closet, and that is enough light for me to get nice roots.
Many clones die simply to the fact, they get too much light and they start to grow.
Given they have no roots, they will use the energy stored in them on new growth and die.
We want them to use that energy on roots, so less light might be the key if your using 2x 45W CFL
Back when I grew on commercial scale, I would use 4x 36 Watt Fluro/CFL for 6-700 clones on a 4x8 ft. table.