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How close to keep 315w cmh light?

  • Thread starter Thread starter Weedbro95
  • Start date Start date Dec 29, 2019
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How close to keep 315w cmh light?

Weedbro95 Dec 29, 2019 4 Replies 5,729 Views
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Weedbro95

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#1
How close would you keep in seedling, veg, and flower stage?
Thanks!
 
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MIMedGrower

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#2
I only had 42” in my veg tent but would have preferred 4’ for seedlings and the first couple weeks.

Then gradually reduce distance as i see plant likes it until peak flower at 18”.

This was in a sun system remote open vertical reflector with a phillips 3100k bulb.

It ended up being the same distance as my glass enclosed air cooled 600hps’. And combined gave best results.
 
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Weedbro95

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#3
MIMedGrower said:
I only had 42” in my veg tent but would have preferred 4’ for seedlings and the first couple weeks.

Then gradually reduce distance as i see plant likes it until peak flower at 18”.

This was in a sun system remote open vertical reflector with a phillips 3100k bulb.

It ended up being the same distance as my glass enclosed air cooled 600hps’. And combined gave best results.
Click to expand...
Got it, so 18 inches flower and veg like 24?
 
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MIMedGrower

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#4
Weedbro95 said:
Got it, so 18 inches flower and veg like 24?
Click to expand...


Not til flower am I that close. I move them closer a little at a time.

18” at peak flowering.
 
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4plant

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#5
I strap mine to the top of the room and let them grow into it but I’m on a table so I probly go from 48” at starts to 16”- 20” at the end.
 
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Thread info

Replies 4
Views 5,729
Started Dec 29, 2019
Latest post Dec 29, 2019
Starter Weedbro95
Forum General Indoor Growing

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