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HPS Bulbs - Horizontal or Verical better for Cannabis Growing

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Bulls
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HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by Bulls »

Good afternoon GrowRoom420!

Let's talk HPS Bulbs! As we know most of the people use standard reflectors which use the bulb horizontally. Other use parabolic shades which require the bulb to be positioned vertically. Which one do you prefer and why? A lot have been said about the vertical positioning of the bulb and how much efficient it is. I am personally using parabolic shade and always get great results. Plus I find heat distribution to be way better when the bulb is vertical.


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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by Wizard »

i cant say much to compair othe then with my parabolic im loosing at least 4 inches of tent hight because of how the socket is mounted vertical where ya can lift a normal reflector higher , it does give a very good spread of light tho
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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by ohlordyeah_420 »

My fear with parabolics is hot air being trapped under the shade. I think light coverage would be better though.
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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by camkush »

I've been tempted to go vertical for a long time. Maybe this next grow I shall do so. Very nice info Bulls.
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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by Bulls »

ohlordyeah_420 wrote:
Wed Nov 07, 2018 5:29 pm
My fear with parabolics is hot air being trapped under the shade. I think light coverage would be better though.
There are vents at the top which allow hot air to be sucked by extraction fan.

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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by ohlordyeah_420 »

I never knew that. I think cost wise parabolic would be more efficient.

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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by Nanook »

vertical ftw
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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by Smokey »

vertical under a para FTW !!! OR If your rich a horizontal Gavita one day when i get the height ill have one
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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by Hobbit »

ohlordyeah_420 wrote:
Wed Nov 07, 2018 5:29 pm
My fear with parabolics is hot air being trapped under the shade. I think light coverage would be better though.
A lot of blokes, myself included modify them for this reason mate. Ive got 4 x 3inch hole drilled in the plate so and my extraction sits above it, my canopy fans will be pushing that heat straight ito the waiting extraction as a bonus so no hot air is trapped at all. Another trick ive seen is to cut em down a couple of inches so there is less area to trap heat. Not sure how cutting them down would effect spread though. My parabolic runs much cooler than a cool hood.

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Re: HPS Bulbs - Horizontal or Verical better for Cannabis Growing

Post by MrMan »

Wizardsbrew wrote:
Wed Nov 07, 2018 5:09 pm
i cant say much to compair othe then with my parabolic im loosing at least 4 inches of tent hight because of how the socket is mounted vertical where ya can lift a normal reflector higher , it does give a very good spread of light tho
for those who want a parabolic but prefer horizontal blbs you can get parabolics with both vert and horizontal. The parabolic i borrowed of my friend for my last grow had both mounting options.

https://www.ebay.co.uk/itm/Parabolic-Re ... :rk:8:pf:0
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