SE 1k hps height from scrog canopy

[DurtyDoper1991]

have a screen set at 2.5 & 3.5 ft. light has max height of 6.8ft. Start at 3ft from first scrog net & let the plants stretch up to 2ftish?

 

[Creeperpark]

That may work but watch them closely as they grow. A lot depends on the strain you are growing and the amount of veg time. . 1k hps can get hot and if its not air-cooled you can cook your resin off your plants. You will just have to make adjustments as you grow. Post some photos of your grow for the best help and answers. .

 

[goingrey]

Not exactly a scientific method but it has worked for me. Hold your hand palm down under the lamp. Where you can feel the heat on the top of your hand is too close - keep your tops below that point.

 

[Creeperpark]

Not exactly a scientific method but it has worked for me. Hold your hand palm down under the lamp. Where you can feel the heat on the top of your hand is too close - keep your tops below that point.

That is the best way to know for sure. If I can't keep my hand under the light comfortably it's too hot for resin.