I use LED flood lights for my ground lighting. Very easy to make (hmm I have a couple more to make. Maybe I should create a tutorial on what i did.) anyhow, I can run all my ground lights via a single computer power supply. Using low voltage wire (i use cat 5 cable currently with rj 45/11 jacks and ends to connect groups of lights to a single cat 5 cable. Also use quick connects for the flood lights. Using ultra bright leds they put off quite a bit of light. LEDs are not like they used to be. I know my ultra bright LEDs are bright enough that they blind you if you look directly at them. You could easily create them with pvc end caps and leds super glued in to holes created in them. I went a little overboard and put mine on round boards (PCB boards.) Just a thought. LEDS are cheap as well if you buy them from teh right source and more than a couple at time.. UV LEDs are the bomb.