UVB BULBS - Cannabis.com Forums Message Boards - Medical Marijuana, Cannabis Club, Dispensary, News

driftmaster · #1 (**permalink**) Oct-13-2007, 23:33

anyone use em currently? im thinking about it but would like to know if they are any good. and also what kinda temp does it (they) put out

driftmaster · #2 (**permalink**) Oct-14-2007, 19:50

somebody...? anybody...?

sd6515 · #3 (**permalink**) Nov-07-2007, 14:37

I'm experimenting with a uvb bulb in flower and was wondering if anyone else out there has. I got the idea from this video

here is the link my embedded videos never work if someone else can embedded it it would be appreciated.
YouTube - THC, UVB and Me

It seems to make sense but I wanted to see if anyone else out there has done this and if they noticed any difference.

sd6515 · #4 (**permalink**) Nov-07-2007, 14:40

Sorry tried again and it still won't work

klondike_bar · #5 (**permalink**) Nov-16-2007, 18:54

ooh...shnazzy

sd6515 · #6 (**permalink**) Nov-17-2007, 11:54

I have notice an almost immediate and drastic change for the better over the last 10 days, the bud sites had almost no visible crystals before and now every site every plant is completely covered. The leafs feel like velvet and the stink has gone through the roof so I will keep this up until harvest and thats when I will know for sure.

Zcomp · #7 (**permalink**) Nov-17-2007, 14:53

Yup, you guys need to read this: http://www.greenmanspage.com/guides/thc.html

Zcomp · #8 (**permalink**) Nov-17-2007, 14:57

I'm with ya man. lookin for a good bulb. One article I read recommended a "Zoo" brand or type(reptile bulb). from the pic, it looked like several diff. Floro tube sizes. They mentioned something on "most UVB/psf" with that bulb. I'm about to go shopping shortly at a few pet stores, I'll repost with what I get.

klondike_bar · #9 (**permalink**) Nov-17-2007, 16:53

eep: more crystals...must...have...crystals....

im gonna get a bulb now!

Zcomp · #10 (**permalink**) Nov-17-2007, 20:03

Its not really about "more crystals", Its really about "more THC".

Zcomp · #11 (**permalink**) Nov-17-2007, 20:37

This was off my bulb. 24" 20W Floro. 30%UVa 5%UVb. I didn't go with the 10% cause I've been reading about the potential harm to you and your plants. I'll start with this 5%, and if it goes well I might move up.

**stinkyattic** · #12 (**permalink**) Nov-18-2007, 06:27

Couple things to think about:
1- UVB is harmful; don't enter the room with that light on, and if you do, be certain to use eye protection.
2- You are making more resins, so provide more available carbon for the plant to use. This is the ideal moment to start giving molasses at a couple tbsp per gallon as a safe carbon source.

GoldenGoblin · #13 (**permalink**) Nov-18-2007, 10:24

Yeah take precautions but that is excellent that it works.
Any particulars on bulbs your using?

sd6515 · #14 (**permalink**) Nov-18-2007, 12:54

I tried to find the bulb online it look likes a cfl and it says gives 10% uvb and i have it slowly moving around the plants on a light mover I rigged up. The light is designed for reptiles and I got it at petsmart. It is only on about 4 hours a day.

Thnx Stinky I did set it up so that I turn it on and off after exiting the room.

Stinky I have been giving them only 1 tbs per gal of molasses I should up it then?

Zcomp · #15 (**permalink**) Nov-18-2007, 12:55

Well you know me stinky, molasses is already part of my regimen. As I have read though, it would seem that the Glandular trichomes concentrate the UVb to synthesize more CBD into THC.
I'm using a repti-glo 5.0. I chose that because the 10.0 seemed too intense. On the box it read "for use when a screen is on top of your terrarium blocking some of the UVb from your reptiles". Plus then there is the abundant warnings about potential danger of UVb.
I have my light "door triggered". When my door opens, The UVb light goes out.

klondike_bar · #16 (**permalink**) Nov-18-2007, 20:45

ooh. triggers sound technical....awsome!

any noticable difference withy the uvb?

all the bulbs in stores are like 40-50 and only like 10 less on ebay.....

klondike_bar · #17 (**permalink**) Nov-18-2007, 20:46

we should merge this w/ the other uvb thread

driftmaster · #18 (**permalink**) Nov-18-2007, 21:39

merge it if you must....but as far as i know about these bulbs they supposedly produce more resin glands in the plant(s) in which produces more crystal on your bud and leaves....i went out and got 4 of em little buggers and the effects on my blueberryxbubblegum are amazing!crystals growing everywhere and every new leaf is even more packed than the older bigger leaves.....thanks for the help guys....

drift

Zcomp · #19 (**permalink**) Nov-18-2007, 22:22

I can't say anything about the results until I smoke them. I do notice my girls packing on more crystals and smelling pretty pungent, but its due to note that this is normal for 7 weeks into flower with this strain.
On the plus side, The one I'm harvesting in the next 5-6 weeks is a sativa dom. then about 4-6 weeks after that, I'll harvest my indica dom. This will give me a good idea about which type reacts best to the added UVb.
edit: The trigger is very simple, they sell them for home security systems. its a very simple pressure activated switch. a hole must be drilled into the door jam, the switch goes in the hole. When you shut the door the switch is depressed. then just wire in and your done. Be sure to use proper electrical safety when attempting this.

sd6515 · #20 (**permalink**) Nov-18-2007, 22:26

I got mine for 15 at petsmart I didn't see it online but in the store they have them and those screw into a regular socket

**stinkyattic** · #21 (**permalink**) Nov-18-2007, 22:29

Geez zcomp. You DO think of everything, you and your door trigger. Very nice. high five.

Zcomp · #22 (**permalink**) Nov-18-2007, 22:39

Well I can't take credit for the idea(found it while I was researching the subject). But I'll take the high five for implementation.
For everyone else remember, when you purchase these bulbs, the manufacturer thinks that you'll be looking at this light through glass. Glass filters almost all UVb. They aren't guaranteeing your safety staring straight at the bulb. You wouldn't stare at the sun would you? no you'd wear glasses. Also your eye's aren't the only worry, your skin gets very damaged from UVb. were talking skin cancer here. If you can't rig up the switch, please place them facing away from where you enter and shut them off the instant you walk in.
I'm just trying one 5.0 bulb to see. then if it works, I'll see if I can/should add more.

**stinkyattic** · #23 (**permalink**) Nov-19-2007, 11:26

I've merged these threads to get all this neat info in one place.