black light ?

Discussion in 'Growing Marijuana Indoors' started by excongray, Mar 2, 2009.

  1. #1 excongray, Mar 2, 2009
    does a like 2 foot black light have any effects on the plants at all ?
     
  2. #2 Agovita, Mar 2, 2009
    Regardless of length, yes. Check into the effects of UV-B lights on resin and THC production. Theres a production on youtube by 'Marijuana Man' about UV-B lights.

    edit; I suppose I could be wrong, and that your blacklight doesn't produce UV-B, consequentially, you should buy a different BL (watch the video)
     
  3. #3 excongray, Mar 2, 2009
    should i use it during veg or flowering ?
     
  4. #4 Budder81, Mar 2, 2009
    Black lights from your novelty store won't do anything but make it look cool.
     
  5. #5 Agovita, Mar 2, 2009
    Flowering, but again, I don't know if its the proper light. Watch the video, learn the shit. It'll make you a better grower in the end.
     
  6. #6 amoril, Mar 2, 2009
    Last edited by a moderator: Mar 2, 2009
    most blacklights are short wavelength blue light and UVA, very very little uvb.

    reptile bulbs from your pet store provide much better UVB, and UVA for that matter.
     

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