Look man I'm done with you either put up or shut up. Put up your evidence right now that mars is terrible, show me your personal grow journal, your data, and an actual study. Otherwise all you're spewing are opinions. Mars is trash, your hps is better? Prove it and do a side by side grow, yield and smoke report. Your bro science won't win anyone over here. Otherwise keep using those 2 giant SUV's you call a carbon filters to air cool that 1000w HPS that you plan to throw away soon because when electricity bill is taking food from your fridge. Everyone has different grow area sizes and needs. Everyone doesn't have to grow what you want them to grow or use what you want them to use, this isnt 1943 Germany.