Home | Community | Message Board


Cannabis Seeds UK
Please support our sponsors.


Welcome to the Growery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: North Spore Bulk Substrate, North Spore Mushroom Grow Kits & Cultivation Supplies   Bridgetown Botanicals Bridgetown Botanicals, CBD Capsules, CBD Edibles, CBD Oils, CBD Topicals   Original Sensible Seeds Autoflowering Cannabis Seeds, Bulk Cannabis Seeds, Feminized Cannabis Seeds, High THC Strains, USA West Coast Strains   Kraken Kratom Red Vein Kratom

Jump to first unread post Pages: 1
This thread is very old and might contain outdated or inaccurate information. You may wish to search for newer posts instead.
Invisiblecaptain.koons
Failed Botanist
Registered: 06/25/08
Posts: 6,170
Trusted Cultivator
mh vs hps
    #65709 - 06/25/08 06:24 AM (13 years, 5 months ago)

how much better is switching to hps for flowering?

I read that using metal halide completely will have nearly identical results with your dense buds being denser... less fluffy/pop corn buds too.

you also wouldn't be hassled switching lights

at a local hydroponics shop a mh and hps almost cost the same price (220 for a 1000w or so and 280-300 for a 600w - thats for the bulb and ballast) a conversion bulb is 140 for either I believe so you may as well buy a bulb + ballast)

im unsure as to what I will purchase.


--------------------


TROLLS NEED LOVE TOO!


Extras: Filter Print Post Remind Me! Notify Moderator Top
Invisiblecoda


Registered: 04/20/08
Posts: 4,736
Trusted Cultivator
Re: mh vs hps [Re: captain.koons]
    #65797 - 06/25/08 01:44 PM (13 years, 5 months ago)

HPS provides the spectrum cannabis uses for it's flowering cycle.  MH halide lights have the spectrum ideal for veg.

Both will work just fine, MH lights have the advantage of producing UVB light which increases trichrome production.

If you have the money i'd buy both.  If you want to you can buy a convertible ballast and the appropriate bulbs.  If you're strapped for cash just buy the HPS.


--------------------


MFDoom666: sobriety kills my buzz every time.


Extras: Filter Print Post Remind Me! Notify Moderator Top
Invisiblecaptain.koons
Failed Botanist
Registered: 06/25/08
Posts: 6,170
Trusted Cultivator
Re: mh vs hps [Re: coda]
    #65929 - 06/25/08 05:19 PM (13 years, 5 months ago)

so MH all the way through would suck?


--------------------


TROLLS NEED LOVE TOO!


Extras: Filter Print Post Remind Me! Notify Moderator Top
Invisiblecoda


Registered: 04/20/08
Posts: 4,736
Trusted Cultivator
Re: mh vs hps [Re: captain.koons]
    #65932 - 06/25/08 05:23 PM (13 years, 5 months ago)

no, it will work ok.  It just won't produce the optimal light spectrum for flowering.  There are a lot of oldschool growers who swear by MH lights.


--------------------


MFDoom666: sobriety kills my buzz every time.


Extras: Filter Print Post Remind Me! Notify Moderator Top
Invisiblecaptain.koons
Failed Botanist
Registered: 06/25/08
Posts: 6,170
Trusted Cultivator
Re: mh vs hps [Re: coda]
    #65935 - 06/25/08 05:28 PM (13 years, 5 months ago)

hps would probably be the best bet for me anyways. I want to do a SoG or SCRoG grow.

thanks


--------------------


TROLLS NEED LOVE TOO!


Extras: Filter Print Post Remind Me! Notify Moderator Top
InvisibleSRH
Male

Registered: 06/15/08
Posts: 33
Re: mh vs hps [Re: captain.koons]
    #82194 - 07/13/08 06:40 PM (13 years, 4 months ago)

get a switchable ballast....
Best of both worlds!!!

especially if you wanna do a SoG or SCRoG grow.

just using just a HPS will stretch your plants out, you wanna try to keep them under 3feet with a SoG or SCRoG grow.


Extras: Filter Print Post Remind Me! Notify Moderator Top
Invisiblecaptain.koons
Failed Botanist
Registered: 06/25/08
Posts: 6,170
Trusted Cultivator
Re: mh vs hps [Re: SRH]
    #82200 - 07/13/08 06:43 PM (13 years, 4 months ago)

how do switchable ballasts compare to conversion bulbs cost/effeciency wise?

I think on a 400w hps if u use a mh conversion bulb your down to 350-360w.


--------------------


TROLLS NEED LOVE TOO!


Extras: Filter Print Post Remind Me! Notify Moderator Top
InvisibleSRH
Male

Registered: 06/15/08
Posts: 33
Re: mh vs hps [Re: captain.koons]
    #82241 - 07/13/08 07:04 PM (13 years, 4 months ago)

well..

Xtrasun 400 watt Halide/Sodium Convertible Ballast  = Suggested Retail: $179.95

Xtrasun 400 watt Halide Ballast = Suggested Retail: $129.95


I've never used retro fit lights so cant help ya there.
I think I paid 250 for my 1000watt xtrasun convertible.


Extras: Filter Print Post Remind Me! Notify Moderator Top
Invisiblecaptain.koons
Failed Botanist
Registered: 06/25/08
Posts: 6,170
Trusted Cultivator
Re: mh vs hps [Re: SRH]
    #82311 - 07/13/08 08:14 PM (13 years, 4 months ago)

ill see what's up

I already have 2 x 600w hps /w mag ballasts and a 400w hps / mh conversion

kinda poor after spending like 450$ on nutrients and 180$ on canna coco substrate ;P

maybe ill get a 1kw mh and run everything when im in a house


--------------------


TROLLS NEED LOVE TOO!


Extras: Filter Print Post Remind Me! Notify Moderator Top
Jump to top Pages: 1

Shop: North Spore Bulk Substrate, North Spore Mushroom Grow Kits & Cultivation Supplies   Bridgetown Botanicals Bridgetown Botanicals, CBD Capsules, CBD Edibles, CBD Oils, CBD Topicals   Original Sensible Seeds Autoflowering Cannabis Seeds, Bulk Cannabis Seeds, Feminized Cannabis Seeds, High THC Strains, USA West Coast Strains   Kraken Kratom Red Vein Kratom


Similar ThreadsPosterViewsRepliesLast post
* Can I use MH in HPS ballasts and vise versa? Azurescens 1,654 4 11/18/09 10:42 PM
by Dr. Siekadellyk
* LED lights-V-HPS and MH cdmc1984 2,267 13 09/13/17 01:44 PM
by cdmc1984
* MH and HPS hybrid bulb
( 1 2 all )
Deadkndys420 6,145 26 11/28/13 12:11 PM
by SmokeSomeHash
* preferance of MH and HPS bulb brands?? switching a plant from HPS to MH for vegging? Pilze 3,661 9 12/11/09 02:10 AM
by Pilze
* Dedicated hp/mh ballasts better than interchangeable? crackrocker00 3,643 7 05/09/11 01:46 AM
by couchlockd
* 400 watt hps w/digital ballast FrozenReality 2,993 7 09/16/08 07:22 AM
by Sirius
* MH and HPS 400w <30$ Jrsxt 1,276 3 05/26/08 02:13 PM
by coda
* GROWEED FINDS: D.I.Y Low bay into a remote ballast growlight/D.I.Y Envirolight Reflector GROWEED 4,098 0 05/23/08 01:54 AM
by GROWEED

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: FurrowedBrow, Magash, Data, Dr. Siekadellyk, phychotron
2,911 topic views. 0 members, 17 guests and 9 web crawlers are browsing this forum.
[ Print Topic | ]
Search this thread:
Reliable Spores
Please support our sponsors.

Copyright 1997-2021 Mind Media. Some rights reserved.

Generated in 0.034 seconds spending 0.008 seconds on 16 queries.