Home | Community | Message Board


Sporeworks
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 North Spore Mushroom Grow Kits & Cultivation Supplies   Original Sensible Seeds Bulk Cannabis Seeds

Jump to first unread post Pages: 1
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
OfflineFrozenReality
 User Gallery


Registered: 07/05/08
Posts: 499
Last seen: 9 years, 4 months
400 watt hps w/digital ballast
    #122121 - 09/14/08 05:13 PM (15 years, 6 months ago)

Ive owned a 1000 watt hps in the past and it produced a good amount of heat. I no longer have it and just ordered a 400 watt hps with a digital ballast and i was wondering what amount of heat i would be looking at from it. Id like to run it in a 2 foot by 4 foot by 6 foot external closet without any inline fans and ducts if at all possible. anyone have any experience with 400 watt hps?

Extras: Filter Print Post Top
OfflineBlargIAmDead


Registered: 06/01/08
Posts: 266
Last seen: 15 years, 1 month
Re: 400 watt hps w/digital ballast [Re: FrozenReality]
    #122448 - 09/15/08 01:00 AM (15 years, 6 months ago)

It's gonna need to get cooled one way or the other. It's getting into the colder months here in the N. Hemisphere so that may do it for ya. But theoretically if your room is a closed system then the entire room will eventually become at hot as the hottest part of the system (the light).

Extras: Filter Print Post Top
OfflineSirius
Saturn Ascends


Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 7 years, 10 months
Trusted Cultivator
Re: 400 watt hps w/digital ballast [Re: FrozenReality]
    #122507 - 09/15/08 07:40 AM (15 years, 6 months ago)

Quote:

FrozenReality said:
Ive owned a 1000 watt hps in the past and it produced a good amount of heat. I no longer have it and just ordered a 400 watt hps with a digital ballast and i was wondering what amount of heat i would be looking at from it. Id like to run it in a 2 foot by 4 foot by 6 foot external closet without any inline fans and ducts if at all possible. anyone have any experience with 400 watt hps?




I couldn't tell you how much heat to expect (a lot less than a 1000 watt, I'm sure :grin:), but I'll definitely tell you that there's no way you'll be able to grow without any inline fans or ducting. Even if heat isn't a concern, your plants breathe, just the same as you do, and you're going to need the volume of the air in the room replaced at least twice every minute, so you need an extractor fan capable of moving that much cubic feet per minute (cfm), to make sure they get enough carbon dioxide. Since you'll need that, you might as well get an air-cooled reflector for the HPS, to help pull heat away from the lamp.


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

Extras: Filter Print Post Top
Offlineaful
Male


Registered: 04/20/08
Posts: 57
Loc: Michigan
Last seen: 9 years, 7 months
Re: 400 watt hps w/digital ballast [Re: Sirius]
    #122561 - 09/15/08 11:19 AM (15 years, 6 months ago)

i ran a 400 watt in a 5x4x6 room and had to have a exhaust fan.
there is a way to grow without any inlet or outlet fans
but you would need to supplement with co2. have an air conditioner running to take care of the heat problem. also a dehumidifier
to take care of the excess humidity.

Extras: Filter Print Post Top
OfflineSirius
Saturn Ascends


Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 7 years, 10 months
Trusted Cultivator
Re: 400 watt hps w/digital ballast [Re: aful]
    #122569 - 09/15/08 11:31 AM (15 years, 6 months ago)

Good point about the CO2. :wink:


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

Extras: Filter Print Post Top
Offlineaful
Male


Registered: 04/20/08
Posts: 57
Loc: Michigan
Last seen: 9 years, 7 months
Re: 400 watt hps w/digital ballast [Re: Sirius]
    #122585 - 09/15/08 12:10 PM (15 years, 6 months ago)

thankyou sirius how bout a rating

Extras: Filter Print Post Top
OfflineFrozenReality
 User Gallery


Registered: 07/05/08
Posts: 499
Last seen: 9 years, 4 months
Re: 400 watt hps w/digital ballast [Re: aful]
    #122733 - 09/15/08 09:03 PM (15 years, 6 months ago)

So not only will i need to run an inline fan and ducting for the light system but i need to also have and inlet and outlet for the plants also? Damn guess im going to have to drill a few more holes than i thought and look into carbon filters. Thanks for the help guys, i really appreciate it.

Extras: Filter Print Post Top
OfflineSirius
Saturn Ascends


Registered: 04/20/08
Posts: 1,540
Loc: The Milky Way
Last seen: 7 years, 10 months
Trusted Cultivator
Re: 400 watt hps w/digital ballast [Re: FrozenReality]
    #122903 - 09/16/08 05:22 AM (15 years, 6 months ago)

Well no, you'll really only need one extractor fan that will pull air through your air-cooled reflector for your lights. You would need an opening for air to come into the room, but it can just be a passive thing, letting the force of the extractor fan removing air to naturally bring air in. Of course, it would be better to have another inline fan pulling air in, but it isn't necessary.


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

Extras: Filter Print Post Top
Jump to top Pages: 1

Shop: North Spore North Spore Mushroom Grow Kits & Cultivation Supplies   Original Sensible Seeds Bulk Cannabis Seeds


Similar ThreadsPosterViewsRepliesLast post
* getting a 400 watt light (hps or mh) ismokeweed 5,211 13 06/08/13 08:17 AM
by SmokeSomeHash
* 250 watts jellyfish 5,269 15 08/29/08 12:15 PM
by jellyfish
* CMH x HPS + 30% blue araucaria 4,685 15 05/07/08 05:30 AM
by Sirius
* T5 and HPS together? Dankenstein 4,732 4 05/12/09 12:34 PM
by Dankenstein
* 400w HPS grow pong 12,212 11 10/23/11 12:20 AM
by growclick
* is 400 watts too much for the space i am using? yellownotepad 2,724 9 07/13/08 04:33 PM
by SRH
* 400 watt light on a light mover? msmr5150 1,734 4 04/20/09 01:22 AM
by ethnoguy
* mh vs hps captain.koons 3,081 8 07/13/08 06:14 PM
by captain.koons

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
3,125 topic views. 1 members, 200 guests and 142 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:
Royal Queen Seeds Cannabis Seeds
Please support our sponsors.

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.024 seconds spending 0.006 seconds on 12 queries.