LED Light

Nan's Nook : Archives : Cakes : Light : More Light Discussions : LED Light
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How important is light?  4 12/12 02:13pm awalter44

By Brad (Raze) on Monday, December 10, 2001 - 09:26 pm:

Ok, I hooked a green computer LED up to a 9v battery and dropped it in my incubator today to help induce pinning. My jars are gonna be 100% any time now.
I'm doing this since I cant leave my jars out to get light (tried that with one, my mom spotted it only hours later. Now I have one thats just full of wet flour, she thinks its growing mold. I convinced her that the white stuff was the flour, and the patches of "green" were mold).

Question 1:
How long will this battery hold this light on for?

Question 2:
Is green light bad for the jars?

Question 3:
Any other light source ideas? Something I can drop in the incubator

Question 4:
Should I kill the heat on this incubator when they hit 100%? I have 2 new jars in there, but I dont care about how fast they go once these are ready.

By Kaijan (Kaijan) on Monday, December 10, 2001 - 09:33 pm:

Not sure how long that LED will last, Probably quite awhile. The green is not bad for them, but I have heard they like blue.

Tap lights work, but batteries are always a pain in the ass if you dont have rechargable ones.

As for killing the heat at 100%, yes thats what you do to induce pinning. You are growing invitro i take it?

increase oxygen levels, light and drop in temperature. are all triggers to initiate pinning.

By Brad (Raze) on Monday, December 10, 2001 - 09:45 pm:

No, not invitro. I have two terraniums set up with perlite already.

And I also have a yellow, red and an orange LED here... No blue though

By Kaijan (Kaijan) on Monday, December 10, 2001 - 09:47 pm:

Green should work fine.

By quote: (Quote) on Tuesday, December 11, 2001 - 01:20 am:

i can't say for sure on shrooms, but i know plants don't respond to green light. just to be on the safe side, i'd use one of the other colors, maybe yellow instead.

By Kaijan (Kaijan) on Tuesday, December 11, 2001 - 02:50 am:

or you could use green and tell us about your experience :)


By Nan (Nanook) on Tuesday, December 11, 2001 - 02:58 am:

By Wang (Wang) on Thursday, May 17, 2001 - 01:07 am: Edit

I'v been thinking about stringing a bunch of LEDS together or mabey trying to re-fit some X-Mas lights with white LEDS, I'v found some but they're pricey if multiplied by many times...I envision a large box stacked with jars ad tiny LED running over each one if neccesary; anyone know exactly how little light in candelas or lumine watts a funguy needs?Would the LEDS have to be white or would red do?As soon as Ican;~3-4 weeks I'll try this out in some form,probably with the box the jars come in;sealed,neglect tek and very low maintenence with a timer on once a day for 20-30 min+ a elctronic therm. strung inside to track highs/lows.Any suggestions?Anyone tried this type of thing yet?I read the thing on the train light,but LEDS are much dimmer,except the cool new white and mult-spec. kind, ad I'm not sure how long they'll last...this isgetting long so

By Quote (Quote) on Thursday, May 17, 2001 - 01:11 am: Edit

i heard someone used l.e.d.'s b4 with success, dunno about red vs. white.

By Wang (Wang) on Thursday, May 17, 2001 - 01:16 am: Edit

really? is it on the web anywhere. whadidya hear?

By Quote (Quote) on Thursday, May 17, 2001 - 01:29 am: Edit

it worked ok, forget where i saw it, sorry.

By Fungusflipper (Fungusflipper) on Thursday, May 17, 2001 - 02:37 am: Edit

actually your best color choice would be blue. shrooms like blue. at least I read that somewhere in my surfing...


By Vitticeps (Vitticeps) on Thursday, May 17, 2001 - 06:57 am: Edit

As a electrical engineering major I can tell you that the LEDs damn near last forever. Unless you apply too much voltage or do physical damage to the LED you should get years of service out of it even if continously stays on for years on end. Think digital alarm clocks... they are just LEDs too. As far as how well it works for shrooms, I couldn't tell you, just a newbie. If they don't like red, green and yellow are just as cheap/common (about 25cents each at radio shack). I may try this myself since LEDs don't require much power and can be run off batteries for long periods of time (stealth is a priority for me, cords going into closets or undere beds may be suspicious). I'll let you guys know how it works for me.


By Ashenms (Ashenms) on Thursday, May 17, 2001 - 10:05 am: Edit

I woldent go with white led just cause of the cost of them since there some what new tell u what though got a white led flashlight frome sea crane and its the best damn flashlight i have ever owned. works under water last forever on a few AA batters. Dosent have the black spot like a regular flash light and dont break when u drop it. Works better than a mac light and brighter to and never goes dim

By Ridder (Ridder) on Friday, May 18, 2001 - 12:33 am: Edit

the LED you should get years of service out of it even if continously stays on for years on end


i thought the thing that burned lights out was the turning on and off in the first place, right?
By Magnusra (Magnusra) on Friday, May 18, 2001 - 12:58 am: Edit

Actually I believe it's that the filament wears thin and breaks. Every hour of use takes so much mass away from the filament which is no thicker than a hair.

By Vitticeps (Vitticeps) on Friday, May 18, 2001 - 04:29 am: Edit

Actually there is no filament in LEDs. LEDs are solid state components. They use a semiconductor crystal chip that emits light when an electrical current is passed through it. Theoretically they should last indefinitely. Realistically they will eventually "burn" out by a power surge that "fries" the semiconductor. There is no chemical reaction involved in an LED, it is encased in solid resin rather than a vacuum filled with a gas such as incandescent lights. LEDs are not affected by turning on and off.

By Magnusra (Magnusra) on Friday, May 18, 2001 - 04:47 am: Edit

I was speaking of incandescent light bulbs, with the filament.

By Whitey (Whitey) on Friday, May 18, 2001 - 05:08 am: Edit

what the hell is a led? what does it look like?
(sorry - i can be ignorant)

By Ridder (Ridder) on Friday, May 18, 2001 - 07:30 am: Edit

you know that light in the front of your computer that turns green when u turn it on? that is an led.

By Vitticeps (Vitticeps) on Friday, May 18, 2001 - 07:49 am: Edit

An LED is a Light Emitting Diode. A diode is a simiconductor that allows electricity to flow in one direction only (essentially). In the case of an LED, when electricity is applied in the correct direction (polarity) the semiconductor emits light. Depending on the semiconductor used, the wavelenght (color) of the light will change and is very accurate. LEDs are used everywhere... digital alarm clock readouts, power indicator ights on computer (and damn near everything else for that matter), the "laser" in an optical computer mouse, the built in flashlight on fancy car keys, even the infrared emitter on television remote controls. Pretty much anything electronic with a power indicator that's red or green is an LED.

By Brad (Raze) on Tuesday, December 11, 2001 - 01:31 pm:

What else can I use to give light in here? Something battery powered and that doesnt have to have a new battery every day

By plinkerdink420 (Plinkerdink420) on Tuesday, December 11, 2001 - 01:49 pm:

just use a flashlight or something... you don't have to leave it on all of the time, just leave it one for a few minutes a day or something... or even a couple of hours if you like

By Cragith Kilbonith (Kilborn) on Tuesday, December 11, 2001 - 02:49 pm:

brad if your trying to find a way to give your cakes light you could just cut hte lid and then put plastic ontop then duct tape the sides. or you could just get a light and put it inside of the rubbermaid. my 1st and 2nd grow i broke a small 15 watt flo and just put it ontop of the rubbermaid and duct taped it so it wouldnt fall off.

By Martaxus (Martaxus) on Tuesday, December 11, 2001 - 05:10 pm:

If you can get a power cord to your project, x-mas lights work well.

By Brad (Raze) on Tuesday, December 11, 2001 - 09:03 pm:

No power cords, no hole cutting. I'm going stealth here. I have two terraniums and an incubator here (my feet are resting on them actually :P)
My parents would never go thru my stuff, so they're safe. But if there's like a window or a power cord they might, as that would be blatently obvious.

By Imok Urok2 (Imok) on Wednesday, December 12, 2001 - 01:01 am:

You might try the battery powered Christmas lights.
They do come in different colors.
My wife made potpouri in flower vases and embeded the lights in there.
Just warm enough to cause the smell to come out.
So they will cause some warmth.

By Brad (Raze) on Wednesday, December 12, 2001 - 02:14 am:

I'll keep an eye out for those. Heat isnt an issue, this room's a little con the cold side anyways.

By quote: (Quote) on Wednesday, December 12, 2001 - 02:11 pm:

ever seen those yard lights that charge up daily from the sun ?
if you had a few of those, you could have some charging outside everyday while you use one inside your box for light.

By Brad (Raze) on Wednesday, December 12, 2001 - 09:36 pm:

Mom: "What are these things sticking in the lawn for?"
Me: "I'm afraid of the dark, and dont want to waste electricity"

Anyways, I rebuilt my incubator the other day, and the jars now sit on 1/4" plexiglass over a smaller rubbermaid full of water with a heater in it. They used to sit on an opaque lid. The heater has a pilot light on it, that gives a small glow. I was wondering, while the jars are in there, is this small glow that comes on (how often I'm not sure, whenever the heats on) enough to iniate pinning for the jars that I have sitting in there now? My 100% jar is sitting on my shelf behind some stuff where it gets only indirect light.