Hello Matt !
Thanks for that very interesting and informative lighting information ! My train room (basement but about only 1/3 below ground outside) has two closed (front wall and rear wall) semi-sealed up windows so I have no source of daylight except when I open the front door to the strong east sun in the morning ! It only hits a small portion of the front of the layout ! I use a 150 Watt CLEAR bulb ( real incandescent ) -- with all room lighting (florescent tube 4 foot fixtures) off -- and here are some of my late afternoon effects -
see photos below. Regards - Joe F