UV light bars

[sweettooth]

Any growers using any UV supplementation and how is it working for you?

 

Very interested

[Goohfy]

On 29/07/2023 at 9:34 AM, sweettooth said:

Any growers using any UV supplementation and how is it working for you?

 

Very interested

Used to be good last 3 weeks of flower 1 a half hours on 3 hours into lights on but haven’t been able to use uv since I moved to viper spectra1500 pro boards unless I hang off wall which with space would seem   Pretty shit no space for uv to get to canopy .peace Goohfy 

[Goohfy]

Pissing me off to be fair might try and shuffle the boards to make room.Does anyone do a less powerful uv fixture so it can hang closer.peace Goohfy.

[Military Grade]

On 19/10/2023 at 9:40 PM, Goohfy said:

Pissing me off to be fair might try and shuffle the boards to make room.Does anyone do a less powerful uv fixture so it can hang closer.peace Goohfy.

 

Would something like this fit the sizes needed? They have multiple ways to mount/fit

 

[Goohfy]

1 hour ago, Military Grade said:

 

Would something like this fit the sizes needed? They have multiple ways to mount/fit

 

Yeah they look like they would do the trick going to check them out thanks.peace Goohfy 

[sweettooth]

nice bars @Military Grade be keen to see their effect.

 

I'm curious how the led uv lights compare to the uv output of cmh? Come across a few threads where cmh outputs uv-a, b & c where as the uv bars are just uv-a.

 

I'm toying with the idea of throwing a 315w cmh wide angled horizon reflector between 2 700w leds to get that uv spectrum and a lot cheaper than than the bars my led manufacturer make.

 

 

edit- I would need 4 uv bars at about 170 each to cover my 2 led lights

Edited November 1, 2023 by sweettooth

[sweettooth]

interestingly, the lumatek uv bars are 30w

 

the maxibright ones are 60w (also do far red so maybe why)

 

wonder how high they go?

Edited November 1, 2023 by sweettooth

[Danny killerZ]

@sweettooth Would those bars create a more intense smoke do you think?  

 

[DeltaMelter]

@sweettooth I use a pair of SolarCure (UVB) T8 lights which are 60W each but not LED. They are also the best part of a metre long too but hang either side of my Quantum board light. You can see them in this pic at the top

 

 

They really do work but are quite powerful.

 

I use them even in veg - just for 15mins each "day" this helps keep internode spacing tighter, gives them a nice green colour and can suppress some pests.

 

In flower I run them for 15min intervals at "noon" but I slowly increase it until I see any effects (usually no more than an hour) at a time. If you over-do it (and I did at first) then you will start to see some pretty odd characteristics like increased beta Carotene so your plants start going carrot orange and degrading.

 

Now I try to "tickle" them with the UV and just stress/stimulate them enough so that they create more secondary metabolites without getting battered by high UV.

 

Your weed won't be "stronger" as such but it will be "terpier" and I found an increase in anthocyanins so the weed was purple too and distinctly more "medical". Not a silver bullet by any means but worth a try if you have everything else dialled in.

[sweettooth]

@DeltaMelter that's awesome stuff, I'll check those out, could be a cheaper alternative. it's the terps I'm after, done a few runs that have been super strong but just lacked taste.

[sweettooth]

interesting comparison, I know its from 2022 but looks like uv florescent is better output than led uv

 

 

[sweettooth]

now thinking 3 of the migro uvb units across my 1.5 x 3 area, either side and middle of leds.

 

looks like I can also keep my spider mites at bay using uvb

Edited November 1, 2023 by sweettooth

[Military Grade]

7 hours ago, sweettooth said:

interesting comparison, I know its from 2022 but looks like uv florescent is better output than led uv

Gas lights vs electric diodes, gas will beat LED, I also believe the gas lights produce a wider spectrum of UV light over LED too.

 

I went for the AC ones as they are just more convenient for my setup. But they won't be as good as gas but do make a difference still.

[Military Grade]

I finally got round to it, pretty easy to setup

 

I have them set to level 5 and to come of for 2 hours each day, i'll use this as a baseline to go from depending on any negative effects.

 

The setup

 

The app page

Edited December 19, 2023 by Military Grade

[Military Grade]

My app also finally updated to 1.8.3, hopefully it's bug free