an advice for changeing between cfl and hps

i know its a stupid qustion , ive seen the answer alot around here and there , but i just wanted to be sure , cuz am not that good in math. so i didnt wanna risk my math results :)

and way am a cfl first time grower am thinkin of startin the 2 week with hps so i just wanted to know whats the best HPS watts for my 4 square foot (3 foot tall grow room ? its goin be 4 plants in there . so iwould like to know a warranted answer please


peace out
 
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