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I just finished reading The Hydroponic Bible by Chris Kovach. In the lighting section of his book he states that using a black light 3 times a day in 10 min intervels cause the trichromes to just grow like crazy. I know that using a black light to grow with is a death sentance to the plants but apparently not at these intervels. Has anyone here ever heard this or tried this method before. Thanks everyone
The man is full of nonsense. You can get the same effect by simply using an unshielded HQI metal halide lamp or LEDs.
Also, UVA isn't really the best UV wavelength to use. UVB is what you want.
i remember reading from somewhere a while ago that you can use UV light when your growlights are off.it mentioned something like that....
if you ever wanna work in your garden when the lights are off you can use normal low wattage UV light cos theyr spectrum or smthing...i cant remember..but is it true or false.? just a matter of interest/