They will work just fine. The manufacturer says that light covers a little over a 2ftx2ft area at 24in above the plant. If you have 2 of them you will be fine for your grow area aslong as you maintain 24in above your canopy through your grow. Just be sure you’re tent has good ventilation.
CFLs have a short light range 8-12in max. I usually have my CFLS 4-6in away from my plant in my space bucket grow. CFLS 2inches to the plant or closer starts to burn the plant, makes leaves closes to the bulbs dry, and makes leaves curl up from heat stress in my experience. Good luck with your grow