Well people, time for another turnaround with the thought train.
I have been doing some research into using Metal Halide lamps in my basking array, and the pros all outweigh the cons.
I brought up the idea within the "scientific community" and the replies were overwhelming in favor of using them because...
a. closely copies natural sunlight, in both UVA & UVB output
b. higher lumens to wattage ratio (brighter light cage)
c. energy efficiency of plasma discharge lighting
d. cost effective if I wire my own ballasts.
One quote that sticks out....