Not too intense. Should be fine. If you are feeling sassy, look for a CFL called an Ott Light. That's the bomb when it comes to cloning!
I like that you have a completely enclosed clone area that won't be susceptible to drafts and temp swings, and you'll be able to spray down the whole interior with disinfectant.
In the future, you will even be able to install a 2nd shelf to double the clone capacity.