Questions about dual arc bulb PLEASE HELP!!

pwwn

Member
ok so i recently aquired a 300-660w balast and a dual ark bulb. my question is alot of the stuff ive been reading is different height for hps and metal halide lol.

so with a dual arc bulb they are both if i am not mistaken and am not sure what the best height i should be aiming for. any info on my grow is in my siggy if you need to know i do have a cooled hood but its not hooked up atm to be a cooled hood(missing glass and fans and duct lol im on a budget) but i really am trying to find optimal height for my plants they are bout 36-40 inches tall atm and hoods/light is about 24" above them. Please help
 
this chart should help
HPS-Light-Distance-Chart.jpg

MH_Light_Distance_Chart.jpg

height_adj.jpg

Don't forget the farther away from the light, Lumens drop way off.
post-36971-1291476615.jpg
 
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