RF shielding?

do most ballasts come with a RF shield output cord? If they dont they tend to cause interference with your tv, radio, etc. I am trying to buy a light set up and am not completely sure what to get, any tips will be greatly appreciated. My space is about 4x4, 4 ladies in 5-gal. Looking for a 400watt HPS MH multiple wattage e-ballast, preferably dimmable and can use HQI bulbs.

Digital ballasts are all RF sheilded, Magnetic ballasts can cause issues with RF. Get something like a dimmable Lumatec or Quantam ballast, then you can use MH and HPS bulbs of different watts. Scroggsy.

I run 400 watt dimmable lumateks with digilux bulbs seams to work
I used to run hortilux they didn't last I still testing digilux
check'em out!


http://www.youtube.com/watch?v=R8Fi8bZpvVg