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for your question about screens...why would u do that...u have en idea how much a screen for a movie theatre would cost..how would u use it.. i mean... from a HSP bulb u dont see blue or red lights..or anyother color in that matter but the white..and in that light contains the spectrum that plants need..its just that is not eficient enough. over 75% of power goes to heat and some of those bulbs would have to be replaced every 3 to 4 months..
the theatrical screens I was talkin about were the thin sheets of plastic they put in front of the spot light.. who said i'd have to pay? (already ran to a theatre backstage and grabbed a bunch) I don't have an idea on how much they cost but I'm guessin they're free 8-)
the reason for using the screen is the funding.. i'm not established yet to bang out a couple LED bulbs and all that.. my idea was to get the CFLs and screen the plants, instead of the bulbs, cus this way the heat is still evenly dispersed around the box, instead of concentrated at the fixture till the bulb blows.. put it over/around the plants and let the specific lights in..
Originally Posted by FERMENTATION
I think what happens is that being a filter it only allows the red light to pass through, thus eliminating the rest of the spectrum emitted. Actually I am pretty sure that is how it works
THAT's wat i was trying to ask.. but I'm questioning the correlation between color screens and the spectrum, will i jus get red light? or will the wavelength be present with it??
Originally Posted by FERMENTATION
If anyone that have been reading this has any knowledge of cannabis specific wavelength responses it would be awesome to see them up here. I'm pretty sure that all the wavelengths mentioned so far while being usable with cannabis were tested on other plants. Since all plants have different specific requirements that information would be very useful to thouse seeking to implement this technology with the growth of cannabis (in spain f course.)
For the production of chlorophyll, and an optimum photosynthetic reaction, light from the blue spectrum (445 nanometers), and light from the red spectrum (650 nanometers) is necessary. Blue light ensures optimal phototropism. Phototropism is the phenomenon which causes plants to grow towards the light, and to spread their leaves in such a way to receive the most light.