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InvisibleGrowth
Grower Of Fungus
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Registered: 07/01/12
Posts: 744
does it have to be a 65K?
    #18429149 - 06/16/13 06:40 PM (11 years, 6 months ago)

i have my tub in my closet which sits under a normal house light bulb for a 12/12 period.

i mean, does it really need to be a 65k bulb? i have no problem getting one, but is it necessary?


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OfflineTheBoomking
I really am Bret McKenzie
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Registered: 01/21/11
Posts: 836
Last seen: 5 years, 8 months
Re: does it have to be a 65K? [Re: Growth]
    #18429200 - 06/16/13 06:50 PM (11 years, 6 months ago)

Everyone with Experience says yes. So Yes.

do a little experiment if you want :shrug:

go ahead with your normal light and use a 65k on another project and compare your results. Better yet post your results on the shroomery :thumbup:

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Invisiblesic_lorraine
Heisenberg
Male

Registered: 06/06/13
Posts: 81
Re: does it have to be a 65K? [Re: TheBoomking]
    #18429226 - 06/16/13 06:56 PM (11 years, 6 months ago)

I just bought a 67k light haha i hope it doesn't matter all too much. When it comes to numbers and lightbulbs i have no clue...


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OfflineBuddyGreen
tripping

Registered: 07/20/04
Posts: 264
Last seen: 9 years, 25 days
Re: does it have to be a 65K? [Re: sic_lorraine]
    #18429258 - 06/16/13 07:05 PM (11 years, 6 months ago)

Ideally, you want 6.5k because it's the closest representation to daylight.  Any light between 5k-7k will suffice.  6500k lights aren't hard to find though.

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InvisibleThadeous
On the path

Registered: 08/02/11
Posts: 1,101
Re: does it have to be a 65K? [Re: BuddyGreen]
    #18429299 - 06/16/13 07:14 PM (11 years, 6 months ago)

Everything here is correct, save that 65k is very invisible to the human eye, on the infrared side of the spectrum.  6500K is what ya want.  :smile:  The K, of course, for Kelvin, and the photon being the wavelength of photon emitted at that temperature.

I got my bulbs at wal-mart.

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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Thadeous]
    #18429312 - 06/16/13 07:17 PM (11 years, 6 months ago)

ill check it out tomorrow. thanks!


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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Growth]
    #18429349 - 06/16/13 07:27 PM (11 years, 6 months ago)

mines a 60k...


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InvisibleThadeous
On the path

Registered: 08/02/11
Posts: 1,101
Re: does it have to be a 65K? [Re: Growth]
    #18429463 - 06/16/13 07:57 PM (11 years, 6 months ago)

I am sure you think it is 60K, but that is wrong.. I could be 6k(K)  temp, but 60K is wrong. 

Wien's law= Wavelength=b/T. Where b=2,8977685 X 10^-3. T=60K. Therefore the wave length =4.8296 X 10^-5.
That is, 48296.1nm wavelength

Now using a 6500K light gives off 445.811nm wavelength.. a bluish tint..
http://science-edu.larc.nasa.gov/EDDOCS/Wavelengths_for_Colors.html

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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Thadeous]
    #18429480 - 06/16/13 08:01 PM (11 years, 6 months ago)

im going to stop off at walmar tomorrow and pick one up.


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InvisibleThadeous
On the path

Registered: 08/02/11
Posts: 1,101
Re: does it have to be a 65K? [Re: Growth]
    #18429485 - 06/16/13 08:02 PM (11 years, 6 months ago)

:thumbup:
Good luck!

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Invisiblegizmo1
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Registered: 06/15/11
Posts: 3,831
Loc: FREEDOM Flag
Re: does it have to be a 65K? [Re: Growth]
    #18429493 - 06/16/13 08:04 PM (11 years, 6 months ago)

I use daylight from the window lol.


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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Thadeous]
    #18429501 - 06/16/13 08:05 PM (11 years, 6 months ago)

i know where walmart is. shouldnt be too hard...

:helloyesthisisdouche:


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InvisibleThadeous
On the path

Registered: 08/02/11
Posts: 1,101
Re: does it have to be a 65K? [Re: Growth]
    #18429513 - 06/16/13 08:06 PM (11 years, 6 months ago)

Says the one who thought he had a 60K bulb :lmao: I kid of couse.

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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Thadeous]
    #18429531 - 06/16/13 08:11 PM (11 years, 6 months ago)

:notamused:

:loldongs:

i looked up and saw a 60k and assumed... seriously though, ill pick one up tomorrow. thanks.


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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Growth]
    #18432455 - 06/17/13 03:21 PM (11 years, 6 months ago)

got me an actual 6500k bulb. it looks pretty...


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InvisibleThadeous
On the path

Registered: 08/02/11
Posts: 1,101
Re: does it have to be a 65K? [Re: Growth]
    #18432736 - 06/17/13 04:24 PM (11 years, 6 months ago)

Nice.  Cheap upgrade to any setup.

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InvisibleGrowth
Grower Of Fungus
Male


Registered: 07/01/12
Posts: 744
Re: does it have to be a 65K? [Re: Thadeous]
    #18432782 - 06/17/13 04:34 PM (11 years, 6 months ago)

hell yeah. i honestly didnt think it would make a bit of difference, but my whole closet looks like the god damn outside!


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InvisibleThadeous
On the path

Registered: 08/02/11
Posts: 1,101
Re: does it have to be a 65K? [Re: Growth]
    #18432794 - 06/17/13 04:38 PM (11 years, 6 months ago)

lol.  Yeah, it'll mess with your circadian rhythm if you keep it on into the night, methinks.  I just keep mine in sync with the sun; plus there isn't a beaming daylight colored glow coming from my windows.

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Offlinempd
Lammen Gorthaur
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Registered: 10/22/12
Posts: 9,660
Loc: Mostly at home... Mostly....
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Re: does it have to be a 65K? [Re: Thadeous]
    #18433259 - 06/17/13 06:27 PM (11 years, 6 months ago)

Mine grow real nice at night, but that is because they spend the day at MPD's Blue Lagoon Mushroom & Fungus Spa Resort.

You may have to troll a bunch of places to find a 6500K lamp.  Much easier to find for tube fluoros.


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There is no truer calling for mankind than that of true conservatism.

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Offlinecarnage11
Mushroom Magician
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Registered: 04/01/11
Posts: 3,409
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Re: does it have to be a 65K? [Re: mpd]
    #18434708 - 06/17/13 11:22 PM (11 years, 6 months ago)

Does it have to be 6500K?  No.

Is it optimal to have 6500K?  Yes.


You want to mimic nature as best you can, so getting a light bulb that is closely related to daylight from the Sun is optimal.  But the mushrooms will grow (poorly) in darkness if they have to. :shrug:


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You're breathing so I guess you're still alive
Even if signs seem to tell me otherwise.


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OfflinePussyFart
Retired Cultivation Extrodinaire
Male


Registered: 04/08/12
Posts: 22,502
Loc: Orbiting Earth
Last seen: 7 months, 28 days
Trusted Cultivator
Re: does it have to be a 65K? [Re: carnage11]
    #18434712 - 06/17/13 11:22 PM (11 years, 6 months ago)

Anywhere between 5000K and 7000K is ok, but 6500K bulbs are the most common.

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