Home | Community | Message Board


Old Faithful Seed Bank
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!

Jump to first unread post. Pages: < Back | 1 | 2  [ show all ]
Offlinepblcenmy1
Perfectionist
Male User Gallery


Registered: 12/30/09
Posts: 60
Loc: CO Flag
Last seen: 3 years, 7 months
Re: After Flowering. [Re: coda]
    #350511 - 01/20/10 12:31 AM (10 years, 8 months ago)

Yes! you are a master cultivator and a psychic.  Thanks for those graphics.  That clears up alot for many others as well im sure.

How effective would that tungsten halogen be at this point?

Its just a 500 watt shop light in which i removed the uv filter.  I felt the plant would make more use of the unfiltered light.  I incorporate it 1 hour in the morning and 1 hour before i turn them all off and its intensity far surpasses that of my cfl's by about 6 times.  Is it just a waste of electricity? 

Anyone have experience flowering with tungsten halogen?

Are their t type, or j type metal halide or mercury bulbs i can buy and replace the halogen?


--------------------
Down 2 Earth, Up N Space!


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblecoda


Registered: 04/20/08
Posts: 4,736
Trusted Cultivator
Re: After Flowering. [Re: pblcenmy1]
    #350879 - 01/20/10 06:36 PM (10 years, 8 months ago)

Find out the Kelvin temp on the light and the total lumen output from the bulb.  Halogen lights get extremely hot, so in the end it may be very inefficient compared to a couple of cfl's strung together.


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


MFDoom666: sobriety kills my buzz every time.


Post Extras: Print Post  Remind Me! Notify Moderator
Offlinepblcenmy1
Perfectionist
Male User Gallery


Registered: 12/30/09
Posts: 60
Loc: CO Flag
Last seen: 3 years, 7 months
Re: After Flowering. [Re: coda]
    #351092 - 01/21/10 12:17 AM (10 years, 8 months ago)

So after a little investigating,  the halogen light turns only a max of 20 lumens per watt.  As you stated previously coda, the light wastes much energy by heating profusely.  And almost a quarter of the wavelengths are so far red and almost infrared that i beleive the plant wont make any use of them at all.  So im guessing  that the color temperature probably averages out around 500K.  Im glad i havnt been leaving this light on for all those 12 hours seeing as it would have been a waste.

Best luminous efficacy (lumens/watt) i could calculate came from a t-5 and t-8 fluorescent and a low pressure sodium.  High pressure wasnt too far behind.

Best overall luminous efficiency came from those previously stated and also included a whitelight screwbody L.E.D.

Best bang for our buck seems to be fluorescent and gas discharge.

As bright as this halogen was i figured it to be a bit more of a heavy hitter than this.

So to answer your question... finally, this halogen was only producing about 1500-2000 visible lumens and its color temp is probably about 500K.  Couldnt really find a number in stone for the kelvin.  So turns out those 2 small cfl's were actually producing more visible lumens by almost two times with 6 times as few watts.  Hows that for a mind fuck


--------------------
Down 2 Earth, Up N Space!


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

Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

Similar ThreadsPosterViewsRepliesLast post
* can you tell the sex of a plant before flowering? mikeytro 10,306 19 01/07/16 04:54 PM
by DannyFolks
* here's a good question, what is the flowering rate of ruderalis? Iamasmoker 5,044 10 06/01/08 12:51 AM
by erb
* early flower for short plants tophernotsocool 20,349 7 07/25/09 08:21 AM
by Jeff Funk
* my babies, last day of veg, flowering starts tomorrow :)
( 1 2 3 4 all )
Harry_Ba11sachM 35,343 77 12/28/09 05:40 AM
by Acidic_Sloth
* when should i flower? time restraint issues! slimDUTCHES 9,267 9 10/01/09 01:43 PM
by Harry_Ba11sach
* Six Weeks Before Flowering? Sirius 6,012 19 04/23/08 10:08 PM
by ethnoguy
* Silver Haze 5 Foot Tall(65 Days Flowering) *Complete* MedicineMan13 4,340 13 01/02/09 10:21 PM
by dude7932288
* clones of the auto-flower. tophernotsocool 11,975 12 10/14/09 06:11 PM
by meatcakeman

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
5,973 topic views. 1 members, 135 guests and 50 web crawlers are browsing this forum.
[ Print Topic ]
Search this thread:
Avalon Magic Plants
Please support our sponsors.

Copyright 1997-2020 Mind Media. Some rights reserved.

Generated in 0.027 seconds spending 0.006 seconds on 14 queries.