I built a 4’ x 6’ x 6.5’ tall grow tent which will have 6 plants. I’ll be using the SCROG method.
I bought a BESTVA DC Series 2000W LED light which Compares to 1400 watt HPS while consuming 390 watts. They say it is perfect for a 7.8’ x 7.5’ growing area at 24" height. As with all the lights I’ve looked at, the PAR ratings drop at the edges, and I debated if I should get two lights. If I did that, I’d have them positioned front to back, a couple of feet apart.
But then I got totally turned on to the idea of having one light on a light mover. Although I bought it from a different company (Growsun Adjust Drive Motor Light Mover Kit), I found the best info is available at https://www.lightrail3.com. They say:
When indoor grow lights move over the tops of the plants, the grow lamps can be positioned closer to the plants for maximized ppfd [photosynthetic photon flux density]. Moving grow lamps can also penetrate to more leaf area, maximizing each grow light on two fronts at once. In addition, there are no hot spots, and shadow patterns are reduced. LightRail grow light mover kits provide this sun-like effect of closer and to more leaf area simultaneously.
I’ll set the light mover up so it runs the width of the 6’ tent. My only question is if it would be better to hang the light so it runs front to back, which gives higher PAR ratings at the outer edges (it’s a rectangular light, measuring ~ 20" x 8". Or, to have the light hung so it’s parallel with the length of the tent.
Here’s what I have in mind - This version has the lights traveling within 6" of the wall at both ends. Note that the light mover pauses at each end for 60-120 seconds.
And this version has them stopping around 14" from the edges.
And this is the other option, having the light positioned parallel to the length of the tent. In my view, it will provide less PAR at the outer edges.
I’m looking forward to your thoughts:sunglasses: