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No one is attacking you Marcel, we appreciate your participation in the discussion. You must realize though this is news to many here, and anytime you introduce a premise it will need to withstand scrutiny- if it's sound you don't need to be defensive you need to be patient.
taureauchien
New member
i've got a question...hopefully someone has done this, and can give an experienced reply.
obviously cmh only goes to 400w
i've been considering a hood like the growzilla where you can put
2 bulbs in the same hood.
sooooo would that make like 800w each hood coming down onto the plants?
and if so, would that give us the intensity that all of us have been asking for this whole thread about a 600w or 1000w bulb.
400w is nice but i dont get the size yields i was hoping for.
800w i'm sure would damn near do it, if i'm figuring this right.
800w cmh = bigger and better plants, and still without the heat issues of a 1000w bulb....although i'd still be sucking the hot air out.
whatcha think?
simba? am i correct?
obviously cmh only goes to 400w
i've been considering a hood like the growzilla where you can put
2 bulbs in the same hood.
sooooo would that make like 800w each hood coming down onto the plants?
and if so, would that give us the intensity that all of us have been asking for this whole thread about a 600w or 1000w bulb.
400w is nice but i dont get the size yields i was hoping for.
800w i'm sure would damn near do it, if i'm figuring this right.
800w cmh = bigger and better plants, and still without the heat issues of a 1000w bulb....although i'd still be sucking the hot air out.
whatcha think?
simba? am i correct?
I just recently made a thread listing an EYE bulb i found that i think would be the perfect compliment instead of HPS for CMH.
It provides a very high spectrum similar to incandescent in the 600-700nm, But has very little orange-yellow. It has a cri of 85 which means little, but it does prove that it has some of the blue side of the spectrum. Mind you its very low in lumens do to th drop in the spectrum i mentioned.
This bulb is the EYE specialux, and it seems expensive to me, but at least i can run it in my 150w HPS. I think this bulb plus the CMH would have a nice full spectrum, with not too much blue and lots of red for flowering. You may want to check it out, maybe if i get some good reason i'll buy one and try it as a mixed spectrum with my CMH. It would mak good use of my 150w HPS.
One thing though, i do think this bulb will cause a considerable amount of heat, but than again maybe not.
Anybody have anything on these?
Links here: http://www.eyelighting.com/specialux.html
spectrum can be seen in here:
http://www.eye.co.jp/downloads/pdf/lamp_catalogue17.pdf
It provides a very high spectrum similar to incandescent in the 600-700nm, But has very little orange-yellow. It has a cri of 85 which means little, but it does prove that it has some of the blue side of the spectrum. Mind you its very low in lumens do to th drop in the spectrum i mentioned.
This bulb is the EYE specialux, and it seems expensive to me, but at least i can run it in my 150w HPS. I think this bulb plus the CMH would have a nice full spectrum, with not too much blue and lots of red for flowering. You may want to check it out, maybe if i get some good reason i'll buy one and try it as a mixed spectrum with my CMH. It would mak good use of my 150w HPS.
One thing though, i do think this bulb will cause a considerable amount of heat, but than again maybe not.
Anybody have anything on these?
Links here: http://www.eyelighting.com/specialux.html
spectrum can be seen in here:
http://www.eye.co.jp/downloads/pdf/lamp_catalogue17.pdf
Yes of course I am not defensive but I know the cause of my problem, I came here to inform you of this problem and to ask you which bulbs would be the best to complet the spectrum of the HPS, not to lost my time with some people who do not believe me.
I know temps were not the problem, and UV brutally fall off was the problem.
To resume my temps, if someone still do not understand :
- previous run : in summer, temps between 25°C and +30°C, I did both grow and bloom under CMH 400W, and I had zero hermies
- actual run : in winter, in grow under CMH 400W temps were between 15 and 22°C, in bloom I switch to HPS 600W so temps were a little higher, around 20-25°C, and I had a lot of hermies.
So, temps were not the problem.
I will try to add two neons for reptiles (Arcadia 12% UV(B) 30W 90cm T8), I will fix them on edges of my Adjust a Wing, parallel to my HPS 600W bulb !
I hope this will be suffisant to not have any hermies.
Best vibes to you !
Marcel
I know temps were not the problem, and UV brutally fall off was the problem.
To resume my temps, if someone still do not understand :
- previous run : in summer, temps between 25°C and +30°C, I did both grow and bloom under CMH 400W, and I had zero hermies
- actual run : in winter, in grow under CMH 400W temps were between 15 and 22°C, in bloom I switch to HPS 600W so temps were a little higher, around 20-25°C, and I had a lot of hermies.
So, temps were not the problem.
I will try to add two neons for reptiles (Arcadia 12% UV(B) 30W 90cm T8), I will fix them on edges of my Adjust a Wing, parallel to my HPS 600W bulb !
I hope this will be suffisant to not have any hermies.
Best vibes to you !
Marcel
- Master Kaze (Mr Nice) (5th run) :
And now, a few pics of my last run, grow under CMH 400W, bloom under HPS 600W, the plants were seeded :
- Jacks Cleaner 2 (Subcool/TGA) (6th run) :
- Angel Heart (Mango Haze X Afghan/skunk) (Mr Nice) (6th run) :
Of course I grew a lot of other strains but I can not upload all the pictures.....
I started growing in 2007 and I grew :
And now, a few pics of my last run, grow under CMH 400W, bloom under HPS 600W, the plants were seeded :
- Jacks Cleaner 2 (Subcool/TGA) (6th run) :
- Angel Heart (Mango Haze X Afghan/skunk) (Mr Nice) (6th run) :
Of course I grew a lot of other strains but I can not upload all the pictures.....
I started growing in 2007 and I grew :
It's not that we don't believe you because we do. We believe that you have stated the facts, and that you believe the cause is the CMH, but there is the possibility that it could be something else. That there were hermies is fact, that it was the fault of the CMH is unproven thus far. You've presented a theory- there's going to be a lot of testing it.
Nice shots! I realize you're asking a question here but I'm not qualified to answer it. I would think either option would work or is at least worth a try. I don't know if anyone here is using those kind of bulbs (purple or reptile) for growing- that's a lot of uv. You may be the first, at least in response to this possible CMH/UV/hermie thing. Please keep us up to date on what you end up choosing and your grow.
the way I have come to understand it about the CMH, the majority of the UV is contained in the bulb itself, and it does not radiate... unless the glass is cracked/removed.
those reptile bulbs actually emit the UV wavelegth. the purple ones are used in the bioresearch and food industries to kill bacteria/germs at the entrances and exit points of research and prep areas.
The purple lights can also be used to kill bacteria on your feet, so the guy at the light shop told me one customer bought one for.
You have to be careful with the purple cfls that are the real deal because they can burn your skin and eyes if exposed directly to them for more than 15min
...nice plants btw
those reptile bulbs actually emit the UV wavelegth. the purple ones are used in the bioresearch and food industries to kill bacteria/germs at the entrances and exit points of research and prep areas.
The purple lights can also be used to kill bacteria on your feet, so the guy at the light shop told me one customer bought one for.
You have to be careful with the purple cfls that are the real deal because they can burn your skin and eyes if exposed directly to them for more than 15min
...nice plants btw
It's simply a best guess, but if those purple/bluish bulbs are UV-C bulbs? The damage caused by those alone could possibly cause herms.
UV-C kills everything within a certain distance & the reason it's used for sterilization. Nasty stuff.
All is good with UV-B, Lizard lights etc. About ready to buy some 10k's myself, just haven't decided on tube or spiral/cfl style yet?
That's the lowdown to the best of my knowledge?
cheers
UV-C kills everything within a certain distance & the reason it's used for sterilization. Nasty stuff.
All is good with UV-B, Lizard lights etc. About ready to buy some 10k's myself, just haven't decided on tube or spiral/cfl style yet?
That's the lowdown to the best of my knowledge?
cheers
Hello chef !
spiral/cfl style has better intensity at low distance (10 - 20 cm) but after 30 cm, tube has better intensity.
So I will try to add two tubes (T8 30W, 90 cm)
This test will help you to choose your UV bulb :
http://www.savannah.fr/pages.php?pageid=36
(in French, but you can read the numbers in the tables)
- Ampoules 10 % UVB
DistanceRef
Ampoule
10 cm20 cm30 cm40 cm50 cmLumière
6520501620291974728bleutée
870575716137542918blanche
5205953126824138blanche
Tubes Fluo 10 et 12% UVB 15 W / 45 cm 30 W / 90 cm
18 W / 60 cm 36 W / 120 cm
25 W / 75 cm
Ref
AmpouleDistance
10 cm20 cm30 cm40 cm50 cmLumière
6207302751461007457blanche
870615270137957053blanche
650096222114795845blanche
Best vibes to you
Marcel
I do have a ultrasun 400w MH ballast with a unknown matching bulb. The only problem I have is all my lights are hand-me-downs, so to speak, and I like the idea of a CMH bulb that I know where it came from and for so cheap
Ill do my first grow with my old lights I think..a hps/mh combo.. and do a second comparison grow later 8)
Generic MH and HPS lamps are fairly cheap ($20 or so?) and can usually be had in the 400w flavor at most home improvement stores and certainly electrical supply stores. Lumen maintenance drops off pretty quickly for MH lamps out to about 4000-5000 hours, so you're probably better off getting a new one of those if nothing else.
Just keep an eye out for mag ballasts as you can afford them and you won't regret going with the CMH.
Just keep an eye out for mag ballasts as you can afford them and you won't regret going with the CMH.
C
coxswain
I ordered and didn't receive any email reply from 23.02.10.
This is not very professional.
Lots of users have mentioned less than speedy service... send an email and see if you can find out what's up. I bet this thread has driven a lot of business his way! 
W
whatissixbynine
.
econolights dot com has 400wHPS bulbs for $6.25, probe start MH ~$9.00, pulse start MH ~$12.00
I have burned one of their (Luma brand) 150hps bulbs for nearly two years now.
I have burned one of their (Luma brand) 150hps bulbs for nearly two years now.
C
coxswain
