So that's everybody for their "specs"... I never really bothered to read the specs

... I only have 6 foot high ceilings in my basement... so I do reverse of things... my light stays at ceiling height... I'll just adjust my dimmer as they get taller in veg down... when in flower I'll simply raise dimmer....
Your plants look like they are lacking nitrogen...
calmag... coupled with light burn....
Growing in general IS EXPENSIVE!!!
my grow setups add about 150-400 bucks on my power bill depending on seasons... my nutrients... every 4 or 5 grows I reinvest about 600 bucks in nutes....
My fd6500 was 350
My medicgrow was 650
Cheap grows bring cheap results... not saying to get high end equipment... but I just go for the middle of the run stuff