Athosanswered grow question 5 years ago No it would not be too much. Keep in mind that you need between 30 to 40 watts of led light (real power draw that is); and for your grow space (7 sq ft) that means a total light power between 210 and 280 watts, the actual power draw of each of those is 132 watts, so 2 of those units would put you at 264 watts or 37.7 watts per sq ft.