$185 total, free delivery in US, they were cheaper but prices went up recently.How much is a bit more
I ran the Mars 600 for 2 cycles before I upgraded to QBs. Now its in a 2x2 veg area and aggressively vented due to the heat it produces. My plants grew beautifully under that light I just did not get great yields but I can't fully blame the light.Mars 300 is a 135w light. So its not going to be crazy yields. If you can spend a bit more you can get 135w Quantum board which would be more efficient, more light and slim profile would suit a stealth situation
That's great to hear that man.Had OK results with this light