For 9 seedlings I would want at least a 400 watt MH for veg and 600 watt HPS for budding. Even better would be 600 and 1000, but both are going to make a lot of heat and it will need to be dealt with. Depends on the space too.

If you get cfl, just make sure it's blue for veg (5500K) and red for bloom (2200K).

Also be sure to read the sticky in this section.