CK - Northern Lights Auto - Greenhouse

Check youtube channel - MIGRO he compare phone app - and only iphone 12 app work well

Hi mate, they all differ. I dont think there is a proper height per say. You can manipulate them to grow taller by raising your light/ reducing brightness. So you can get them exactly how you want them. It depends on the training you wish to implement. I prefer mine to stay a little shorter as I only have 1.6m tent height. Hope this helps and good luck with your grow 🙂