dcw03 wrote:so i know for a fact that halogen is no where near as effivent as hps or mh but right now i cant afford one for about another month... so right now im growing under a two tube 48 inch flouro with three more 24 inch flouro. im growing in my closet in soil about two months old and about 24 inches tall. three plants all female. so i was wanting to know if i can use a 500W halogen work lights in there untill i get my hps? it is bright as fuck... oh and i know that heat is a major factor with halogen but is hps heat worse than halogen heat?