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Offlinetoikey
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Registered: 11/01/03
Posts: 40
Loc: Perth, Australia
Last seen: 19 years, 6 months
Re: led's as light sources [Re: donkey_lipz]
    #3082151 - 09/02/04 10:21 AM (20 years, 4 months ago)

disclaimer: light doesnt matter just open ya windows, xpose growzones and let the sun bounce around the room

im studyin electronix and usin leds to pin

leds use teeny amounts of power and produce narrow beam of light usually 15-30degrees they also have a distinct peak wavelength and emit a slight spread eiher side of this
im using two leds, one with a peak output at 475nm the other at 490nm and they both have a significant power output about 10 nm either side of this peak.
only got one of each for a 70litre container, they are high power leds (costin a bit more than 50c each but not more than a few bucks) n they put out about 2000 times the lite intensity as a normal led like ur harddrive,keybord,immobiliser lite
theyre flashing on off on a constant cycle bout .5secs on .8secs off running off an old fone charger
and when no other lite leaks are introduced the cakes still pin and mush go the rite way although i have noticed that the two leds dont seem to provide QUITE enuf lite (pinning seems to be a little lower and abort rate seems a little higher)
u also gotta be a bit careful about the slim light output 'cone' and i rekon that could also be a factor

leds done rite are cold lite, cheap as chips to run n concealable but i think some attention has to be paid to light distribution..

fastfred:: watts x seconds = joules (power x time = work)
joules = watt seconds = watt hours / 3600 = kwhours / 3.6
and 0.305 J is not very much :smile: (1J is the work required to lift 98g 1m at sealevel on earth and a smack in the head is about 50 joules)

tahts what happns wen i go online wackt - start lecturing haha

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OfflineOvermynd
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Registered: 07/31/04
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Re: led's as light sources [Re: fastfred]
    #3083799 - 09/02/04 04:49 PM (20 years, 4 months ago)

Quote:

Would 128.202 watts for 0.0025 s be equal to 0.320505 watthours then? Again that seems pretty low.




fastfred: Yep, that's right. Remember we're dealing with a very sensitive organism here ;)

1 watt-hour is 3600 joules (1 W = 1 J/s; 1 J/s * 3600 s = 3600 J). A kilowatt-hour, those things you get billed for by the electric company, is the amount of energy used by 1 kW over the period of 1 hour. 1 kW = 1000 W = 1000 J/s
1000 J/s * 3600 s = 3,600,000 J
3,600,000 J / 3600 = 1000 W-h = 1 kW-h

Real-world example: I have an LED putting out about 8 mW of blue light. I run it for 1 hour. (It seems to be doing a pretty good job too ;o )
0.008 W * 1 h = 0.008 W-h (28.8 J)

That flashlamp delivers 0.320505 joules per square foot (0.000089 W-h/ft^2, your original figure) in the course of its 0.025 second labor. Of course, this exact figure depends on the flashlamp and any reflector the researcher may have used. Divide the two, and you'll see that my 8 mW LED acting over 40.06 seconds puts out the same amount of energy as that strobe does in 0.025 seconds. Therefore, to deliver the saturation energy of 0.320505 joules/ft^2 using my LED, I need to run it for 40.06 seconds.

People who open the lid, fanning for 15-30 seconds while in a daylit room, will deliver more light in that period than my tiny LED.

In any case, this ain't much energy. Therefore, strobes, processor-controlled banks of LEDs, HID headlights, and that 3 kW welding laser in your closet are all overkill as far as your culture is concerned~

The advantage of a flashlamp is basically light-shocking the entire mycelial surface and inducing whatever parts can possibly pin to pin. The disadvantage is that single bursts of light are interspersed with long periods of dark, which will cause the mycelium to go "hey, there's no light here after all!" Of course, if all it takes is one burst to cause pinning, and if maturation can take place just fine in total darkness, then you're set. I'd prefer slow light infusion through a window to help the stems point in the right direction though ;)

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OfflineCornelius
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Registered: 02/12/04
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Re: led's as light sources [Re: hyphae]
    #3083854 - 09/02/04 05:03 PM (20 years, 4 months ago)

Quote:

hyphae said:
Quote:

Cornelius said:
Quote:

hyphae said:
Quote:

Cornelius said:
flashlight......once a day.....


Lets see some of your flushes :wink: I just love good pics. :wink:







I don'a have any pictues of them growing down though...


Nice little cake ya have going there :wink: anymore?  BTW what strain is that? Nice job at getting them to grow straight up you must really have that fruiting chamber pitchblack eh? Heres a couple of mine. BTW nice job!








They're GT - my fruiting chamber is actually translucent, which probably cause the sideways and downward growing in the firstplace - that is when I started beaming my flashlight straight down on my cakes for a few minutes each day, and it seemed to correct the problem. They're not quite as straight as yours though!! :tongue: What strain?

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Offlinericelicker
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Registered: 03/31/00
Posts: 722
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Re: led's as light sources [Re: Cornelius]
    #3084287 - 09/02/04 07:05 PM (20 years, 4 months ago)

His point isn't about the strain, it's that with more light (and opaque sides) you'll get a better pinset which translates to a better flush.

You said yours aren't quite as straight. Sorry but he's got more and they're bigger (thicker stems).

I have a feeling strain isn't a real big issue here.


--------------------
"my brain waves travel at half the speed afta we..." -del tha funkee

"Two men looked out through prison bars...one saw the mud, one saw the stars." -anonymous

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OfflineCornelius
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Re: led's as light sources [Re: ricelicker]
    #3084332 - 09/02/04 07:20 PM (20 years, 4 months ago)

Quote:

ricelicker said:
His point isn't about the strain, it's that with more light (and opaque sides) you'll get a better pinset which translates to a better flush.

You said yours aren't quite as straight. Sorry but he's got more and they're bigger (thicker stems).

I have a feeling strain isn't a real big issue here.




this isn't about who's got the bigger dick ricelicker:penis: - I'm simply saying that a flashlight is enough to get the shrooms growing up, but I'm sure a strategically lit chamber could produce better results...

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Offlinericelicker
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Re: led's as light sources [Re: Cornelius]
    #3084664 - 09/02/04 09:04 PM (20 years, 4 months ago)

OK, I just thought you were saying it was equal. Sorry.


--------------------
"my brain waves travel at half the speed afta we..." -del tha funkee

"Two men looked out through prison bars...one saw the mud, one saw the stars." -anonymous

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Invisiblefastfred
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Re: led's as light sources [Re: hyphae]
    #3085764 - 09/03/04 01:31 AM (20 years, 4 months ago)

Quote:

hyphae said:
>Mushrooms will pin in complete darkness

"Formation of basidiocarp initials in Psilocybe cubensis occurred only when cultures were illuminated."
This seems like a direct contradiction FF? Yes some mushrooms will pin AND even grow in complete darkness.




His experiment probably didn't last long enough to get pins in the dark, so it's not really a contradiction. I haven't read the paper, but I doubt that he let them go long enough. It takes a lot longer with no light.


-FF

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Offlinehyphae
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Re: led's as light sources [Re: fastfred]
    #3087653 - 09/03/04 01:44 PM (20 years, 4 months ago)

Believe it or not there has been much research into this FF not just Edmonds. How many years have you been doing this?

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Invisiblefastfred
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Re: led's as light sources [Re: hyphae]
    #3088048 - 09/03/04 03:30 PM (20 years, 4 months ago)

Quote:

hyphae said:
Believe it or not there has been much research into this FF not just Edmonds. How many years have you been doing this?




Would you be so kind as to cite the said research?

Plenty of people, including myself, have reported pins forming and mushrooms growing in complete darkness.

As I mentioned earlier, I don't have the paper only the abstract. If we had the paper we could settle this. I was just speculating on why he might not have had any pins. I don't see why you're disputing my speculation when you know no more than me about this paper.

I can tell you, for a fact, that it does happen.


-FF

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Offlinehyphae
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Re: led's as light sources [Re: fastfred]
    #3088063 - 09/03/04 03:33 PM (20 years, 4 months ago)

Are you saying you never even peeked at your colonizing jars for even a half a millisecond? :lol: :lol: :lol: :wink:

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Invisiblefastfred
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Re: led's as light sources [Re: hyphae]
    #3088260 - 09/03/04 04:25 PM (20 years, 4 months ago)

Quote:

Are you saying you never even peeked at your colonizing jars for even a half a millisecond?




Nope. I innoculated them from spores and put them right into an opaque bin (rubermaid or sterilite spraypainted black). I then put them under a dark stairway that was only accessible from the back of a closet.

I didn't have a chamber for them for quite some time, so it was several months (I estimate 3-4) before I even looked at them. At that point they had many twisted whitish fruits inside the jars.

I did eat some and they were average.


-FF

P.S. I have no reason to bullshit. This happened over 5 years ago, and it's not like I got a decent invitro flush out of them or anything.(they were just standard PF cakes) There was maybe 7g from a dozen or so jars.

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Offlinehyphae
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Re: led's as light sources [Re: fastfred]
    #3088373 - 09/03/04 04:59 PM (20 years, 4 months ago)

I'm not saying your BSing. It sounds like ya got that answer pretty well covered inside and out :wink:

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Invisiblefastfred
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Re: led's as light sources [Re: hyphae]
    #3088491 - 09/03/04 05:35 PM (20 years, 4 months ago)

I didn't plan it as an experiment... It was a total accident.

I'll call it the "forget your jars for several months tek"... And it sucks as far as yeild!


-FF

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InvisibleFucknuckle
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Registered: 04/24/04
Posts: 6,762
Re: led's as light sources [Re: fastfred]
    #3088542 - 09/03/04 05:48 PM (20 years, 4 months ago)

I hate to diagree with you again but I have done invetro several times. The shrooms do grow at a slower rate yes but, they continue to grow and make spores and die and rot. In the jars after they die and rot they make everything sickly etc.....

Are you sure you left them for 3-4 months??

Cause I have never made it past 3 weeks after first fruits before the oldest ones started to get fucked.


--------------------
What it is, is what it is my Brother.
It is as it is, so suffer thru it.

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Invisiblefastfred
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Re: led's as light sources [Re: Fucknuckle]
    #3088578 - 09/03/04 05:59 PM (20 years, 4 months ago)

Yep... Sorry I can't be more precise, but it was a long time ago.

The shrooms were actually pretty decent lengths. They curled around following the glass inside the jars. They were standard PF jars except for no verm layer. They had no tape on the holes and had 2 layers of tinfoil on top.

Go ahead and try it yourself. A couple jars don't cost very much. Knowing when to check on them would be the big problem. I would do several jars and check one quickly at 2 months, then 2.5 etc.

I've seen jars drown in their own myc piss, so I know what you're talking about. I'm not sure why those jars made it so well. OTOH I've seen jars seem to drown in myc piss, then seem to suck it back up and look healthy.


-FF

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