Now I'm growing with a low wattage lamp, and it's a week into flowering, and my 400W led grow light is shipping. My question is, will these 2 weeks of poor lighting show its effects at the end?
It'll show it's effects sooner than that, with the stretch it's about to do....I would LST it now,if you haven't already .
No. You'll see the effects of the new light really quick though . Sent from my SM-G930P using Grasscity Forum mobile app
For autos it could be a problem, she could stay a little short, anyway if there's a big wattage difference between the two lamps, don't put the new lamp straight near the leaves or it could burn evertyhing, give her a couple days of adaptation, and lower the distance day by day.