For Dogznova and anybody else interested,

First: WARNING UVB light is dangerous to your eyes, skin and health.
DO NOT go into your bloom room while it is on.

In the pure T5 set up I used there where 6-4' T5 2700K fluorescents, driven to VHO levels (85watts/bulb) using an IceCap ballast.
I used 2-4' T5 Zilla desert 50 fluorescent bulbs that only come as NO (normal output, 28watts) but of course I overdrive them to VHO levels of 85watts.
That's 3X normal for at least 3 times the output.

How long to use them each day is very strain dependent. The above bud (NLxJackHeher) was the result of abt 2 hours per day. Some of the pure indicas I have tried made good use of up to 4 hours a day, but at a certian point you get no more Trichome prodution or increase in potency. So far my observations indicate that equatorial sativas and high altitude indicas like much more time then other strains. And if you think about it, that makes perfect sence since those are the areas that recieve the most natural UVB light.

I honestly have not experimented enough with the pure T5 setup, I used the frame and 4-T5s to build a hybred LED/T5 light.

Curently I'm using the 2-T5 Zilla bulbs to suplement a 1kw HPS light, again just a few hours in the middle of the light period.