Thinking of a new light ..

stardustsailor

stardustsailor

Well-Known Member
locoezon said:
Και να θέλει κάποιος να σε μισήσει δεν μπορεί ορε Sailor.
Άσε μας βραδιάτικα που κάθεσαι και ασχολείσαι με τους haters!
Συνέχισε αυτό που κανεις πρώτα απ'όλα για τον εαυτό σου και οποιος γουστάρει ακολουθεί!


Sorry for my greek language guys,but when i see one Greek guy be apologized to the haters i pissed off!
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Έχεις απόλυτο δίκιο...
 
Positivity

Positivity

Well-Known Member
Sds....you da man. Don't let anyone tell you different. Your beyond DIY...you got just as much if not more skills than all of the sellers. Except..you share loads of info...that most would like to keep to themselves.

People act like mj is legal worldwide...maybe we should motivate people to grow and enjoy herb before we put money making endeavors first. Part of that is making sure peeps use a good set of lights and not some untested crapola
 
stardustsailor

stardustsailor

Well-Known Member
RedCarpetMatches said:
Dinero for the panel lol.

Why no UV? I think it's whats missing from LED panels. Opinion?
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~ $650

Why no UV ?
Simply because I wanted a 100% CXA panel ...
I've some 'open bets' going on ,with some grow-pals here ,at my home-land ...
( HPS 400 W vs CXA 300 W ....That kind of bet ... )

Yes ,my opinion is that UV is the 'missing link ' to greenhouses (plastic foil /glass panels filters out almost 100% of UV ) and to any artificial horticultural illumination ...

At least ,regarding nutrient value,aromas,taste ,vitamins ,anti-oxidants ,etc ...
UV is the 'action ' ,all of the above are 'plant's reaction ' ...
 
stardustsailor

stardustsailor

Well-Known Member
" Within the Ultraviolet Spectrum, Ultraviolet UVB (short wavelength high frequency) & UVA (long wavelength low frequency) are the spectrum of UV light of most concern to us. Referencing the table below, general purpose acrylic naturally filters all UV light below 345nm-(100% UVB), but only 35% of UVA light. Simliarly, ordinary window glass passes about 90% of the light above 350 nm, but blocks over 90% of the light below 300 nm. Many applications, such as document, artifact, and artwork preservation call for a material which absorbs ultraviolet light in its most damaging range from 285 to 400nm.

Many pigments and dyes absorb UV and change color, so paintings and textiles may need extra protection both from sunlight and fluorescent bulbs, two common sources of UV radiation. Old and antique paintings such as watercolor paintings, for example, usually must be placed away from direct sunlight. These factors are why many museums place black curtains over watercolor paintings and ancient textiles
because watercolors can have very low pigment levels and need extra protection from UV light. "

http://www.eplastics.com/Plexiglass_Acrylic_Sheet_UV_Filter
 
stardustsailor

stardustsailor

Well-Known Member
Polymers that transmit UV (only when chemical pure ,though )
-PMMA (plexiglass) : 90-95%
-PET (polyethylene) : 90-98%
-PS (polystyrene ) :90-95%
-PC ( Polycarbonate / Lexan ) : 90%
-Semi-transparent Teflon (PFA type ) : >95%
-White teflon (PTFE type) : Scattering UV
 
stardustsailor

stardustsailor

Well-Known Member
hyroot said:
wouldnt the IR be bad for your eyes too
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IR (and deep red leds ! ) on the contrary ,is under research for possible wound healing enhancement /speed up ...
Water inside the eye ,absorbs almost 100% of IR ..It almost never reaches to the eye's retina ..


http://www.renulifecenter.com/healthyglo_lite_bed/scientific_research.html
http://www.amazon.com/Infrared-Light-Therapy-Speeds-Healing/dp/B003VOVZZ6

http://www.elixa.com/light/healing.htm

http://missionignition.net/bms/led_heal.php

http://www.nirredlighttherapy.com/

and many more links if you search " Ir / red leds healing '
 
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