LED LIght Distance- Twilight COBs

[moss1310]

Hey Everyone-

Im getting ready for my first tent grow using LEDs. I have the Twilight COB4, I;ll use my small 2 x 4 x 5 tent, and soil as a medium. How far should I keep my lights away from the top of my plants? Anyone have a recommendation using this light?

Thanks in advance.

 

[Dwight Monk]

Old thread, but some numbers thrown around in it:
Details & Questions About the Spider COB LED Grow Light - Twilight LED
I would start at least 20" away and you can slowly lower it if it not burning them, can kinda go by how hot the back of your hand is from as if it is warm to your skin probably warm to the plant.

 

[moss1310]

Thanks for the link UrbanMonk.