Is there a light timer on the Nano Cube or AquaPod ?
nope, you will have to buy the timer yourself EB
are metal halide lights good to use with reptiles, to get the uvb, and uva they need??
Metal halides give off a fair amount of UV but most of it in the UVA range. There is a small but usable amount of UVB production,depending on what species you are keeping. You will get much more UVB output with the MV bulbs designed for reptile keepi...
Track Lighting installation?
If you have any experience hanging fixtures you should be able to do this.