I agree, but if you are using two or more HID bulbs why not just use a proper 6500k metal halide in combination with a 2100k HPS, two bulbs two ballasts 2 cool tubes (not those double ones, unless your grow area is large and you are using 1000W, they will be sufficiently high that the light from the two lamps will mix before it hits the garden). And use this setup throughout veg + flowering....so, imho, a change over is no good; but adding one to enhance spectrum seems a good idea, better even than adding some 6500k cfl's.
i haven't decided to buy one yet, but i'm getting closeri'm a sucker for experimentations
HPS, MH, Floros, Phillips Cermamic Metal Halide has 'em all beat.
- Thread starter ThatOneDude
- Start date
skunkushybrid
New Member
Yes, my flower area now is set up with 3 400w lights, 2 hps and one MH. There will also be a 300w UV lamp too on the next flowering batch.
You can never have enough light, IMO... and if you can give multi spectrum, then this is certainly the best way to go.
You can never have enough light, IMO... and if you can give multi spectrum, then this is certainly the best way to go.
email468
Well-Known Member
won't argue with that said the dual-spectrum light owner!
skunkushybrid
New Member
No specific logic... i feel. Cannabis loves HPS during flower for plentiful yield, so i'm thinking one blue light will be enough to heighten potency. The UV lamp too of course, but on this next grow it's time will be mostly used by the two plants that have been vegging beneath. This way i can get a completed harvest from a plant grown under just UV. Only problem is that the bud will be seeded.
tahoe58
Well-Known Member
problem....? you lost me? sorry if I'm just being still asleep?
Re: combination - I had read in a couple of places that the ideal combination (according to those sources....) is 2:1 MH:HPS.....that's why I asked.....but as we have so often identified, there are many unique circumsatances that makes one make the choices we make. in this case, there was an inclination to seek quality and maybe compromise yeild and speed. Ideally, what I am going to do is install the suitable ballasts and hardware for 2 MH (100W) and 1 HPS (250W) and 2 UV lights the arrangement being uvfloods of some nature on the inside far back corners blanketing the entire cab....and the central HPS flanked by 2 MH......or at least that is the plan wthat I have with my current understanding and knowledge.....which will change....hahahahahahaa
Re: combination - I had read in a couple of places that the ideal combination (according to those sources....) is 2:1 MH:HPS.....that's why I asked.....but as we have so often identified, there are many unique circumsatances that makes one make the choices we make. in this case, there was an inclination to seek quality and maybe compromise yeild and speed. Ideally, what I am going to do is install the suitable ballasts and hardware for 2 MH (100W) and 1 HPS (250W) and 2 UV lights the arrangement being uvfloods of some nature on the inside far back corners blanketing the entire cab....and the central HPS flanked by 2 MH......or at least that is the plan wthat I have with my current understanding and knowledge.....which will change....hahahahahahaa
skunkushybrid
New Member
Yeah, and where did that ratio come from? I'm sure it came from JC (Jorges Cervantes). These guys like people to think they're on top of everything, and they follow the growing trends... then they just publish information that may or may not be correct. What do they care, they're making money.
skunkushybrid
New Member
In what way would it enhance vegging?
Make them grow faster? Mature faster?
I doubt it... and who cares, a lot of people use fluoro's just to slow down the veg' cycle. You can grow sog and speed up the veg cycle to 5 days if you want to... in fact you don't even need a veg' cycle.
The salesman hype these lamps. There is no benefit at all to CMH. HPS is perfect for flowering and offers more photons = more photosynthesis = heavier yield. The threads are started by salesman. They know growers buy a lot of light, and post on growing forums. But do use pulse start MH such as Ushio Pulse strike, they really are a good lamp worth using, if ur not vegging with fluoro.
stickyicky77
Well-Known Member
I decided to go with this 400w bulb EYE Hortilux Super HPS. I just picked it up today with a E ballast and hood.
LightBulbDude
Active Member
I feel compelled to come to the rescue of the poster who put in the link to the light bulb site for the HPS-Retro White. I'm actually the owner of the site and am in no way affiliated with the previos poster. Good luck to you guys.
KAOSOWNER
Well-Known Member
Thatonedude/lightbulbdude..............lol I am still not buying this crap, i will stick to what works and let everyone else experiment. If someone gets some sort of conclusive evidence that is positive for growing. please let me know, but i doubt you will get any that will be beneficial. But this has been an interesting thread and i am sure that is all cmh will ever be for growers.
skunkushybrid
New Member
He doesn't want to give up does he...
ThatOneDude
Well-Known Member
I've never seen a place with so much crap the higher post count members. You guys really have you're heads inflated, stop trying to flatter yourselves, the thread is for info, not your lame ass power trip.
I hate to bust everyone's bubble but, I'm not logging in as anyone else.
I have had my light up and running a few days and here is what I personally have experienced.
I really don't think the bulb is running much cooler then a MH/HPS bulb. I'm getting a MH conversion bulb and I will report back with what the temp differences are or I may go with an air cooled reflector. I'm in an umbrella type of reflector and with a 4 inch fan and carbon scrubber, the cab is at 80 degrees.
A MAJOR downside is the effect from exposure to the bulb. As I said, I'm still building my cabinet and the hydro set up so, I was under the light a good bit yesterday and my arms were itching like crazy and got some red blotches. I read another persons post that said her and her husband had the same thing from sticking their hands under the bulb. I don't know what causes it, but I'm getting a MH conversion bulb until I find out.
Save your drama and your wanna be detective work for the soap opera or try to post your guesses elsewhere. If you want more info, stick around, I'll be back with more facts......and it will be under this log in.
I hate to bust everyone's bubble but, I'm not logging in as anyone else.
I have had my light up and running a few days and here is what I personally have experienced.
I really don't think the bulb is running much cooler then a MH/HPS bulb. I'm getting a MH conversion bulb and I will report back with what the temp differences are or I may go with an air cooled reflector. I'm in an umbrella type of reflector and with a 4 inch fan and carbon scrubber, the cab is at 80 degrees.
A MAJOR downside is the effect from exposure to the bulb. As I said, I'm still building my cabinet and the hydro set up so, I was under the light a good bit yesterday and my arms were itching like crazy and got some red blotches. I read another persons post that said her and her husband had the same thing from sticking their hands under the bulb. I don't know what causes it, but I'm getting a MH conversion bulb until I find out.
Save your drama and your wanna be detective work for the soap opera or try to post your guesses elsewhere. If you want more info, stick around, I'll be back with more facts......and it will be under this log in.
email468
Well-Known Member
A kick-ass, detailed grow journal of your own showing real results using nothing but ceramic metal halide lights from start to finish will shut everyone up. Anything else (white papers, spectrum graphs, etc..) is a sales pitch.
whitebombs
Well-Known Member
skunkushybrid
New Member
Yes info' with pic's would be nice... rather than "CMH has 'em all beat"
So far, the bulb doesn't run much, if at all, cooler. It has less lumens, and it causes irritation to the skin...
Looking forward to more facts.