I'm leaning in this direction only because I was thinking about the shadows and was not sure if that would cause problems or not. I have no problem installing or doing the wiring....that's no big deal to me. My only concern is that I will have 9 lights running maybe more if I light up my other 4 pens. Just don't want to be throwing good money out the window for no reason. lol! I'm saying that after I spent all this money on building these pens.... lol!! My wife is going to kill me if I keep it up.
Chris
Go ahead and put a light in each pen. If you don't need them you don't have to use them, but the extra wire and outlets don't cost much and are easy to install now, but will be aggravating to add in later. I know my DH hollered like crazy about me putting so many outlets in our basement and the cabin when we were doing/re-doing the wiring ("who in the world needs an electrical outlet every six feet????"). Those outlets cost only about $1 each to install at the time, but would have been a bear to add later... and yes having an outlet every six feet is WONDERFUL! Just install a switch on each light so you can turn on/off as needed, or better yet istall an outlet that you can plug the light into, that way you can use a cheapy plug-in timer if you want, or even use a string of LED Christmas lights as your light source.