ah could someone please repost the info for the digital ballast to run with the 315w cdm elite agro... cheapest source... thanks
also i might add to give this post some substance that I have switched to arcadia 12.0's from lightyourreptiles.com for UVB. by far better than what I was using.
http://www.usa.lighting.philips.com/connect/assets/additional-literature/ehid/IZTMH-210315-R.pdf
available here (and probably elsewhere for cheaper):
http://www.elightbulbs.com/Philips-07357-IZTMH210315RLF-Elite-MW-Metal-Halide-Ballast
There is also one of a different manufacturer in the Greenbeamslighting.com store. It runs at a higher frequency and they are claiming higher light output and phenomenal lamp life.