I just upgraded 3 days ago to a 600 watt Digital Greenhouse Ballast from my old magnetic 250. Ive read that digital ballast might cause RF interference and I just caught the cable guy up by the cable line and panicked and unplugged my light and put my girls by my T5. Do you guys think my digital ballast is causing interference or am I just paranoid ? Really want to return my digital ballast now and get a good old magnetic one. Oh yeah and I have a smart meter to FML !!