Lighting is UVB light really work?

[GanjaStyle]

what do you think?
do its really causes an increased production of resin and enriches the aroma?

how should i use it?
at the first day turn it on for 15mins then in the second for 30mins and so on?


ALL THE BEST AFN, YOU'R #1!
:thumbs:

 

[briman]

UVB should only be used the last few weeks of flower. It is used to cause stress to the plant, because UVB burns the plant tissue and causes the plant to throw out more trichs to protect its self. If you use it in veg or when flowers show, it could cause the plant to hermie, due to stress. There are some autos that will hermie out toward the end of its life anyway, kind of a self preservation thing. I have led grow lights with dual 15w UVB bulbs built in the unit and give the answer above I just gave to you. You can get the balasts, bulbs or a couple UVB units that are plug and play from a pet store for aquariums, that will work just fine, but it doesn't take much UVB to push the plants to produce.:thumbs:

Read it from Ed Rosenthal himself...
http://mjgrowers.com/book_what_exper1.htm

 

[GanjaStyle]

im now on week 5 into the flower stage (photo)

how do you recomand me to start use it?

 

[briman]

Run it 12/12 just like your regular cycle and position the lights the same height of your grow light/s. If you are running a 8 week flowering strain, run it the last 2 weeks of cleanse.

 

[astronomy420a]

I have uv running from beginning to end, just like the sun.