Home | Community | Message Board


World Seed Supply
Please support our sponsors.

Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

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: Original Seeds Store buy cannabis seeds   Amazon HPS

Jump to first unread post. Pages: 1 | 2 | Next >  [ show all ]
InvisibleInverted
CNC Machinist/Greenthumb
Male User Gallery


Registered: 06/01/08
Posts: 9,953
Loc: North Star Flag
Read This Before Buying Your HID Lights!
    #315811 - 11/15/09 09:56 AM (8 years, 5 days ago)

I was curious how much lighting was necessary for my grow box, so I decided to google it.  Well eventually I stumbled upon this chart, which seemed to coincide with all of the information I just learned while browsing all over the place.

It's a very handy chart to have around as it pools a lot of good information, presented in a way basically anyone can understand.

If you are in the process of starting a grow, READ THIS FIRST!

While it is easy to fall short on lighting, it's tough to have too much (some say never enough!) and you should try to at least keep your wattages higher than the recommended footprint of your growing area.

For example:  If you are beginning a smaller cabinet/micro grow, you could build your box 4 sq. ft. (2' x 2') and should purchase either a 150w HPS (flowering + vegetative), or 175w MH (Red Spectrum/MS version if possible) preferably only for vegetative growth but MH can be used for flowering as well. 

It's not an EXACT guide to follow but a very good and accurate one that I would use myself.  It's not like changing your dimensions a couple of inches will totally throw off your chances of success, but conditions will be optimal for the plants w/ those guidelines.

This should be stickied for everyone to see easily, as it is a good quick source of valuable information.

EDIT- FUCK OFF AND POST THE RIGHT NUMBERS.  I PULLED THE INFO FROM OTHER SOURCES SO :finger:

:lol: Last time I try to help.  Good job Growery :nonono:


Edited by Inverted (11/16/09 06:03 PM)


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleTriptonic
Male Arcade Champion: Spider Jump


Registered: 06/14/08
Posts: 15,581
Loc: Flag
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #315851 - 11/15/09 12:15 PM (8 years, 5 days ago)



Post Extras: Print Post  Remind Me! Notify Moderator
Offlinehisheater
trigger man
Male


Folding@home Statistics
Registered: 02/03/09
Posts: 61
Last seen: 6 years, 5 months
Re: Read This Before Buying Your HID Lights! [Re: Triptonic]
    #315950 - 11/15/09 04:18 PM (8 years, 5 days ago)

thanks man that's really helpful. I've been looking  to buy a HID light but was waiting to make sure I got the one I needed. This should help.
thanks again


--------------------
They call them fingers but I never see them fing... Oh wait, there they go.
-----------------------------------------------
Doo Yoo Hookah???


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleHarry_Ba11sachM
cannoisseur
 User Gallery


Registered: 04/20/08
Posts: 11,753
Loc: Nepal Flag
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: hisheater]
    #316190 - 11/15/09 10:20 PM (8 years, 5 days ago)

going by the 50W/sq foot rule that chart is extremely low.


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


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleMagashM
The Feminizer
 User Gallery


Registered: 04/21/08
Posts: 6,605
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316250 - 11/15/09 11:05 PM (8 years, 5 days ago)

This chart is way way way off. Do not follow this chart at all. Off by at least 50%. This will not work for cannabis.


--------------------
All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?


:growingweed: Join us at the Growery! :growingweed:


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleInverted
CNC Machinist/Greenthumb
Male User Gallery


Registered: 06/01/08
Posts: 9,953
Loc: North Star Flag
Re: Read This Before Buying Your HID Lights! [Re: Magash]
    #316302 - 11/15/09 11:42 PM (8 years, 5 days ago)

Show me proof otherwise then!

For my grow, a 150 Watt is more than enough for me to get a successful harvest... All of those numbers matched up with every other source I found...

Even all of the HID companies gave me VERY similar numbers...

Make your own spreadsheet and correct the numbers if they are wrong!

I'm sorry i'm not mad, I don't know the information myself, and that is why I thought this was correct, especially since so many of the dimensions matched up w/ other sources I browsed.

Please provide the accurate information so that I can adjust the numbers and edit my OP...

Thanks Magash and H_B :yesnod:


--------------------
Don't criticize what you can't understand


Edited by Inverted (11/16/09 12:32 AM)


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineCrusty Ass Bastard
Pheno Hunting


Folding@home Statistics
Registered: 08/02/09
Posts: 786
Last seen: 6 years, 9 months
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316332 - 11/16/09 12:45 AM (8 years, 5 days ago)

A 600w HPS will not cover 7x7, more like 4x4 maximum. These numbers are outdated and/or inaccurate, check out the charts in Cervante's Medical Grower's Bible for example.


--------------------
|

Skunk Train (Most Recent) | G13 Haze (Completed) | G13 Haze (Completed) | G13 Haze (Completed)
Cinnibis Rolls | Indoor Peppers

"The secret of improved plant breeding, apart from scientific knowledge, is love." -Luther Burbank


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleMagashM
The Feminizer
 User Gallery


Registered: 04/21/08
Posts: 6,605
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316353 - 11/16/09 02:40 AM (8 years, 5 days ago)

Nah, I'm gonna kick back and let ya use the chart. Just do me a favor and post pics of the results. :thumbup:

50watts per sq  foot is what ya want. Your not growing violets or tomatoes.


--------------------
All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?


:growingweed: Join us at the Growery! :growingweed:


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleHarry_Ba11sachM
cannoisseur
 User Gallery


Registered: 04/20/08
Posts: 11,753
Loc: Nepal Flag
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316422 - 11/16/09 10:43 AM (8 years, 4 days ago)

well how about an example? I've got a 4x4 area with a 600W HPS, and after my harvest I'm considering adding ANOTHER 600W to my room because I think I can get even more out of my plants.

a 4x4 is almost half the size of what that chart claims is the right size for 600W, but I still feel it's underpowered


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


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleDr. SiekadellykM
Question Everything!
Male User Gallery Arcade Champion: Plumber, Radial Snake


Folding@home Statistics
Registered: 04/20/09
Posts: 9,345
Loc: Ketamine Flag
Re: Read This Before Buying Your HID Lights! [Re: Harry_Ba11sach]
    #316425 - 11/16/09 10:54 AM (8 years, 4 days ago)

yeah I have used 1000W HID lights in a 4x2' area about a foot or two away...

and my state is like 14cents per KWH i think


--------------------
The Kratom Report...


Post Extras: Print Post  Remind Me! Notify Moderator
Offline81renaissance
Coachella '13 KKOTY
Male


Registered: 04/20/08
Posts: 4,181
Loc: State of Mind Flag
Last seen: 1 year, 4 months
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Dr. Siekadellyk]
    #316483 - 11/16/09 02:38 PM (8 years, 4 days ago)

I'm rockin' 2000W in a 4x4 space.  Guaranteed with the same genetics, I'd see a bigger yield than Harry's grow based on LIGHT ALONE.


--------------------
"So it goes."
-Kurt Vonnegut


BlueBerry_Swisher said:I want French fries. No, I want a penis French. Thank you. I'm so excited. I can not contain myself. Now I eat chocolate. It is so good. I'm trying to rub it all over myself. And then lick. Now I need a hot shower. The end.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleHarry_Ba11sachM
cannoisseur
 User Gallery


Registered: 04/20/08
Posts: 11,753
Loc: Nepal Flag
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: 81renaissance]
    #316489 - 11/16/09 02:43 PM (8 years, 4 days ago)

Agreed absolutely. if you and I had EVERYTHING exactly the same except for our lights, you would see an increase in harvest size of 50% or more. light is by far the #1 limiting resource when it comes to growing indoors, because fresh air and nutes are easy to provide. cannabis is an extremely efficient photosynthetic organism as well (being a C4 Eudicot), so the more light, the better.


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


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleInverted
CNC Machinist/Greenthumb
Male User Gallery


Registered: 06/01/08
Posts: 9,953
Loc: North Star Flag
Re: Read This Before Buying Your HID Lights! [Re: Harry_Ba11sach]
    #316538 - 11/16/09 03:42 PM (8 years, 4 days ago)

Well i'm only using a 20" x 20" space with about 30,000 Lumens so when they finish you guys can see.

I never said i'd follow that chart.  I have my own growing guidlines that I follow.


--------------------
Don't criticize what you can't understand


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSmOakland
Now with Grow!
Male User Gallery


Registered: 05/31/09
Posts: 2,655
Loc: Oaktown to NOLA
Last seen: 23 days, 22 hours
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316539 - 11/16/09 03:49 PM (8 years, 4 days ago)

I'm no Magash in experience but I would not really trust a chart that says to use 150 watts for 4 square feet and 250 for 9 square feet.  That seems like some b.s.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleTriptonic
Male Arcade Champion: Spider Jump


Registered: 06/14/08
Posts: 15,581
Loc: Flag
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316541 - 11/16/09 03:51 PM (8 years, 4 days ago)

Quote:

Inverted said:
Well i'm only using a 20" x 20" space with about 30,000 Lumens so when they finish you guys can see.

I never said i'd follow that chart.  I have my own growing guidlines that I follow.




Quote:

Inverted said:It's not an EXACT guide to follow but a very good and accurate one that I would use myself.  It's not like changing your dimensions a couple of inches will totally throw off your chances of success, but conditions will be optimal for the plants w/ those guidelines




Yes, yes you did :lol:


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleInverted
CNC Machinist/Greenthumb
Male User Gallery


Registered: 06/01/08
Posts: 9,953
Loc: North Star Flag
Re: Read This Before Buying Your HID Lights! [Re: Triptonic]
    #316649 - 11/16/09 06:01 PM (8 years, 4 days ago)

Ok well I should have specified, i'd only use the guide for a 2 x 2 foot area...  I don't ever plan to use anything larger than a 400 watt and I don't have to worry about space so most of it is irrelevant to me.  I live in a house with a full basement...

I generally don't go looking for information on the net, although I used to for years.

Now I just base my judgements on past experiences and how the plants look and react to what I do.  lol i've grown buds better than anyone i've ever met so whatever, find your own information if you guys already know it.


--------------------
Don't criticize what you can't understand


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleTriptonic
Male Arcade Champion: Spider Jump


Registered: 06/14/08
Posts: 15,581
Loc: Flag
Re: Read This Before Buying Your HID Lights! [Re: Inverted]
    #316679 - 11/16/09 06:28 PM (8 years, 4 days ago)

Touchy touchy Inverted calm down jeez.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleMagashM
The Feminizer
 User Gallery


Registered: 04/21/08
Posts: 6,605
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Triptonic]
    #317018 - 11/16/09 11:34 PM (8 years, 4 days ago)

Ok, everybody agreed that the chart is fucked so I can junk this thread?


--------------------
All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?


:growingweed: Join us at the Growery! :growingweed:


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSmOakland
Now with Grow!
Male User Gallery


Registered: 05/31/09
Posts: 2,655
Loc: Oaktown to NOLA
Last seen: 23 days, 22 hours
Re: Read This Before Buying Your HID Lights! [Re: Magash]
    #317022 - 11/16/09 11:48 PM (8 years, 4 days ago)

Junk it junk it!!!!


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleHarry_Ba11sachM
cannoisseur
 User Gallery


Registered: 04/20/08
Posts: 11,753
Loc: Nepal Flag
Trusted Cultivator
Re: Read This Before Buying Your HID Lights! [Re: Magash]
    #317023 - 11/16/09 11:50 PM (8 years, 4 days ago)

yeah, inverted even deleted the original chart anyway, so now this thread is really nothing but a bunch of bickering.


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


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1 | 2 | Next >  [ show all ]

Shop: Original Seeds Store buy cannabis seeds   Amazon HPS

Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

Similar ThreadsPosterViewsRepliesLast post
* HID lights DON'T use a lot of power!
( 1 2 3 4 5 6 7 all )
Hanky 92,160 120 08/16/14 01:02 PM
by Guy Fawkes
* About Lights Picklez 4,474 1 07/04/09 02:30 AM
by captainmurphie
* LED lights 114425 3,365 18 10/12/09 10:22 AM
by Dr. Penguin
* Help With lIghting omentheduck 1,542 2 02/08/09 01:31 PM
by omentheduck
* veg room lighting pong 1,064 2 10/22/08 09:20 PM
by dutchmushroom
* Finally got HID! How far away is OK? Inverted 1,704 8 06/16/09 08:41 PM
by Inverted
* Lighting in a small area???????????? starrider 1,365 9 09/20/09 10:47 PM
by KaptKid
* Vegging Lights : what are the options? icanfeeltherain 2,259 7 04/02/09 11:32 PM
by impgl

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, Miscusi
4,883 topic views. 0 members, 4 guests and 27 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
Everything Mushrooms
Please support our sponsors.

Copyright 1997-2017 Mind Media. Some rights reserved.

Generated in 0.028 seconds spending 0.003 seconds on 18 queries.