HPS Bulbs - Horizontal or Verical better for Cannabis Growing

[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.

[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

[ohlordyeah_420]

My fear with parabolics is hot air being trapped under the shade. I think light coverage would be better though.

[camkush]

I've been tempted to go vertical for a long time. Maybe this next grow I shall do so. Very nice info Bulls.

[Bulls]

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.

[ohlordyeah_420]

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

[Nanook]

vertical ftw

[Smokey]

vertical under a para FTW !!! OR If your rich a horizontal Gavita one day when i get the height ill have one

[Hobbit]

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.

[MrMan]

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