I've been told relative blue light is used most for the plant in vegetative when it needs to grow tall and strong, and red-orange light helps grow fat buds and increase yields during flowering.... so heres my question what determines the color of the light? ... I mean can i cover a fluroscent light with red glass or film of some sort or something and change the wave-length? I mean it would cause the light to appear red? and that is how we determine color.... by wavelengths.. so if the light looks red it has the wavelengths of red spectrum? haha im sorry if this is confusing but its the simplest way I could put it.... just a thought I had...curious for an answer if possible..
Wavelength - color (need pro lighting help)
- Thread starter KushIce33
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2ill4u
Well-Known Member
ya your on the right track, but covering it with a lens wont change the frequency, but when you see 5000k and 2500k those are the wave lengths i got a 250w MH argo sun which is best for flowering because of the red spectrum, the cfl's are the same it all goes by frequency. i hope this answered your ?.
Entrepenur
Well-Known Member
i thought plants like blue better
2ill4u
Well-Known Member
ok sure maybe yours do, mine just like the red during flowering, but i am a newb so i could be wrong, but the buds always seem to be fat. the good thing about my agrosun bulb, its got alot of blue spectrum as well for the vegging, so i pretty much use the one bulb through the whole grow, minus the little fluro's i use to get the plant going.
Hairy Bob
Well-Known Member
Let me try to clear this up; if you put a filter over a lamp to change it's colour, the lamp is still emitting the full spectrum it was designed for, but only a part of that spectrum gets through the filter. Say for example that 50% (a high estimate) of the lamps output is the correct spectrum you are filtering for, then half of the energy used by the bulb to produce light is wasted, as it simply reflects back off the filter. Much more economical to just use the right bulb for the job, 6500k for veg, 2700k for flower, they aren't expensive when your talking about cfls, only a couple of quid for a bulb, and much better than using electricity needlessly!