What ever you buy make sure it has a warranty! Odyssey doesn't. I just picked up a Hamilton dual 175 MH
with dual 55 watt CF
for $50.00. When I tested it, it would start up for about 2 minutes then shut down. I found the lamps where pulse start and the ballast was probe start. So after buying new lamps it works fine. Now I'm stuck with 2 175 watt Hamilton 10k lamps slightly used.
I also have a 72" 150 watt x 3 HQI fixture that smoked after 5 months that I'm uneasy to use after the cheep fans died and took out one of three ballast.
"I found one that has good reviews that is cheap that I am wanting to try." I wonder who gave the good reviews?