Athosanswered grow question 5y 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.