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OfflineCJJ
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Different light sources
    #7711962 - 12/03/07 05:18 PM (16 years, 1 month ago)

Obviously the sun is the best source of light but for those who grow in a closet under a bed or w/e . I was wondering if those string lights that people put in their car or up for christmas would be sufficient. They are cool to touch so wont start a fire under your bed. Or if there are other neat sources of light?


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Offlineveda_sticks
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Re: Different light sources [Re: CJJ]
    #7712125 - 12/03/07 05:52 PM (16 years, 1 month ago)

The suns light is only optimal during a number of months each year. The colour temp of the sun changes throughout the year.

The best type of lighting to use is a fluerescent tube with a colour temp between 6000-7000 kelvin (daylight). For smaller grows a compact fluerescent light will do better than incandescent bulbs as long as its strong enough to reach the surface of the substrate.

Small christmas tree lights are usually led,s, and wont produce enough light in the correct spectrum.

Im not saying that it wont work and nothing will happen, chances are you will get some shrooms growing. But a proper light will make a vast difference, if this is going to be complelty hidden grow i would use the compact fluerescent on a timer.


Keeping the FC under your bed sounds like a bad idea since lots of contams live on the floor. Its suggested to keep your FC a few feet of the ground


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OfflineCJJ
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Re: Different light sources [Re: veda_sticks]
    #7712743 - 12/03/07 08:28 PM (16 years, 1 month ago)

Are there any cool to touch sources ?


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OfflineNibin
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Re: Different light sources [Re: CJJ]
    #7714333 - 12/04/07 08:38 AM (16 years, 1 month ago)

Both flourescents and CFLs are cool to touch.

The only lights I use in all my house are 11w CFL (compact flourescent lights). They are white light and have 6000k on the box. The good thing about them is that they fit into a normal bulb fitting and produce good light for little electricity and no heat.


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InvisibleSlimz
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Re: Different light sources [Re: Nibin]
    #7714420 - 12/04/07 09:09 AM (16 years, 1 month ago)

i KNOW that 6500 is better, but will my 2700k mini florescent, incandescent replacement bulb, do ok?


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OfflineCJJ
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Re: Different light sources [Re: Slimz]
    #7714638 - 12/04/07 10:14 AM (16 years, 1 month ago)

Do lumens have an effect on growth ?


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Invisiblelegallyhomeless
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Re: Different light sources [Re: Slimz]
    #7714900 - 12/04/07 11:17 AM (16 years, 1 month ago)

Quote:

Slimz said:
i KNOW that 6500 is better, but will my 2700k mini florescent, incandescent replacement bulb, do ok?




6500k cool blue is the BEST.


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OfflineRogerRabbitM
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Re: Different light sources [Re: legallyhomeless]
    #7714927 - 12/04/07 11:25 AM (16 years, 1 month ago)

2700K is awfully red. It might be nice for room light and for reading because it's 'warm', but you want light in the bluer end of the spectrum, so shoot for a frequency above 5,000 Kelvin.

Lumens do matter to an extent. We're not deriving energy from the light, but it does need to be bright enough to penetrate into the casing layer. Bright fluorescent light from a 'daylight' type tube seems to help generate the best pinsets over a wide range of species. I have a four tube 48" fluorescent fixture with 6500 Kelvin tubes in all four slots. This light is plenty for my mini-greenhouse. I have it hanging from the ceiling so it shines into the front of the greenhouse. Reflective foil is on the back wall of the GH.
RR


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OfflineThe Shape

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Re: Different light sources [Re: CJJ]
    #7715396 - 12/04/07 01:19 PM (16 years, 1 month ago)

im experimenting with LEDs

this thing appeared a day after i turned the LED on him



before that he was the same size as the others
for all i know it may not have been the light


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OfflineCJJ
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Re: Different light sources [Re: The Shape]
    #7716996 - 12/04/07 07:21 PM (16 years, 1 month ago)

Could we get pics with the LED's ? im very interested in this if it works.


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OfflineThe Shape

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Re: Different light sources [Re: CJJ]
    #7717224 - 12/04/07 08:14 PM (16 years, 1 month ago)

Heres some pics of the EQs under LEDs w/ humidification ultrasonic fogger for close to 100% RH



--------------------
You miserable, presumptuous, mediocre piece of shit. You have no talent. Your no artist. An artist respects the silence, it serves as the foundation of creativity. Your a disgrace. Your everything thats gone wrong in this world. You're self consumed, no talent, mediocre piece of shit. And i've earned my right to say it.  In 1975 i walked Bob Dylan up on stage. Who the fuck are you?
I knew The Grateful Dead in 1966. Who the fuck are you?
You're nothing... And you'll never be anything.

- Douglas Levison


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OfflineCJJ
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Re: Different light sources [Re: The Shape]
    #7717347 - 12/04/07 08:38 PM (16 years, 1 month ago)

Hmmm wonder if that LED is enough any experts have any info on this?


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Offlinefreepain
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Re: Different light sources [Re: CJJ]
    #7717440 - 12/04/07 09:01 PM (16 years, 1 month ago)

Read up bro they RR said that it should be in the 5000 area led's don't really reach that


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OfflineCJJ
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Re: Different light sources [Re: freepain]
    #7717460 - 12/04/07 09:06 PM (16 years, 1 month ago)

yeah i read what RR said but this obviously shows growth has anyone else actually tried LEDS ?


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InvisibleMojo
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Re: Different light sources [Re: CJJ]
    #7717577 - 12/04/07 09:30 PM (16 years, 1 month ago)

The set up that RR describes is total overkill for cubes. You could grow a small crop of MJ with all that fucking light. Not necessary at all.


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OfflineCJJ
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Re: Different light sources [Re: Mojo]
    #7717639 - 12/04/07 09:43 PM (16 years, 1 month ago)

I dont think RR is using it as direct light its more off reflective surfaces i think hes saying


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OfflineMolasses
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Re: Different light sources [Re: CJJ]
    #7718012 - 12/04/07 11:42 PM (16 years, 1 month ago)

they sell leds in the 6500 k color temp, get those, it should work fine, haven't tried it yet, but wouldn't know why it shouldn't.


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OfflineNibin
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Re: Different light sources [Re: CJJ]
    #7718456 - 12/05/07 04:25 AM (16 years, 1 month ago)

Quote:

CJJ said:
yeah i read what RR said but this obviously shows growth has anyone else actually tried LEDS ?




You don't actually need ANY light. Light is just one of many pinning triggers.

Any kind of light will help, but the one that works the best is the light in the 6000k range that has already been mentioned


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Offlineveda_sticks
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Re: Different light sources [Re: Mojo]
    #7718487 - 12/05/07 04:53 AM (16 years, 1 month ago)

Quote:

Mojo said:
The set up that RR describes is total overkill for cubes. You could grow a small crop of MJ with all that fucking light. Not necessary at all.




I wouldnt say thats overkill, a mini greenhouse can hold many many trays. Those lights ensure that light can penetrate the casing layer to the substrate.


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

PF TEK - writeup by EvilMushroom666
Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD
Cakes can and will pin! - So you think cakes suck for pins. Your wrong
Franks Simple Coir/Verm Tek
Franks Proper Pasturisation Tek
Franks Spawning To Bulk - Monotub
Professor Pinheads RTV Injection Port Tek
Foo Mans No Soak WBS Prep Tek


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OfflineRogerRabbitM
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Re: Different light sources [Re: Mojo]
    #7718508 - 12/05/07 05:15 AM (16 years, 1 month ago)

Quote:

Mojo said:
The set up that RR describes is total overkill for cubes. You could grow a small crop of MJ with all that fucking light. Not necessary at all.




Mind explaining yourself? We get the best results growing mushrooms with fluorescent light because it's the correct color temperature.

Plants require much more light than mushrooms because they derive energy from the light source. In addition, most mj growers switch to a redder light at fruiting time, not the high frequency 'blue' light we get from our fluorescents. Perhaps you're confusing the Kelvin color temperature scale with intensity?

My fluorescent fixture provides light to six shelves, each one eight feet long and three feet deep. That's 144 square feet, thus less than 1 watt per square foot of shelf space. The foil helps to prevent the trays in the back from being shaded by those in front. I challenge the best mj grower in the world to try to grow plants under that.

Compact fluorescent bulbs work great as well for fruiting chambers and mini-greenhouses. In addition, LED technology has progressed considerably in the last few years. I'm sure it won't be long before LED fixtures are made with controllers to adjust color temperature.
RR


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