Lighting for adults
Lots of discussion on here about lights.
My pens are outside so they get sunlight. In the spring and fall I supplement in the mornings in order to get 14 hours of light.
I've got a LED rope light above the pens. Don't remember the actual length, watts, etc but it runs the length of the pens.
If your pens are inside, do a search in this forum and you'll find plenty of info.