Yeah, I read the title smartass, and if I thought either of those two were good I would have probably recommended them.
Well, I can tell you, Galaxy ballasts are garbage. A friend bought 10 of em, guess what, ALL 10 FAILED within 6 months. There were no problems with his electrical, hell, he even had a power conditioner on the whole building! Ran some Lumateks, a few shit out, finally he went with Quantums, has been running steadily for over a year now, ZERO problems. How long have your ballasts been running? You have all of 2, right? And just how many other brands did you try before?
If I'm gonna recommend a piece of equipment, I make damn sure I know what I'm talking about before I give something my seal of approval.
Galaxy= Crap, a 10/10 failure rate is HORRIBLE. FAIL.
Lumatek=Better, but still crap, 3/10 failed, they tried to copy the dimmer idea, but did a horrible job. FAIL.
Quantum=the good stuff, comparable to buying top shelf at a dispensary. You get what you pay for. Works with flipflops, actually cuts the amount of power used when using the dimmer, not just the light. 10 ballasts still working, with over a year being on 24/7 on a flip. Hmm, gee, I wonder which ballast I should go with?