flowering with MH

[OldSkool1010]

I have overlay the light spectrum of the CMH lamp with a chart that shows the activity of photosynthesis in various ranges of the visible spectrum to see just how effective this lamp might be. Looks like a LOT o wasted energy.

[RichardDean]

and and HPS is not wasted energy????? HAHA it is much more inefficient than the CMH at putting out the proper spectrum. I never said it was the end all since using MH/HPS can get you close but it still doesn't have as much of the spectrum as is put out by a CMH. HPS does provide good yields but as I said a CMH can yield just as much but with better quality because it outputs way more UV. Why does it seem like the folks at international cannagraphic seem much more professional than most on this site and realize the benefits of this bulb. Most commercial growers use HPS because of it brute force method of lighting their areas when you are pushing for quantity. I am not a commercial grower and only groww for myself and a couple friends and have more concern for quality and THC production is key cause that is what gets you high. Otherwise it is just the cannabanoids that are getting you blazed and that is why most bud is so subpar.

[curtropolis420]

well this is stupid just take my thread and post about everything i didn't answer i'm not spending anymore money so i don't know why your suggesting a cmh i already have a growlight and a shitload of cfls

[RichardDean]

Originally Posted by curtropolis420

well this is stupid just take my thread and post about everything i didn't answer i'm not spending anymore money so i don't know why your suggesting a cmh i already have a growlight and a shitload of cfls

good for you son use em and stop worrying about what others think wasn't suggesting the CMH to you anyways just was pointing out the fact that if you have only space for using one bulb then it is a good choice.

[aregan35]

Metal halide is awseom for flowering if you are growing for quality rather than quanity. buds under mh light are not as dense but have so much more resin in em.. trust me the buds are fantstic but the yeild is off a little . start a sog and you wont care how much you priduce if you have a harvest every two weeks

[CaliGrower]

Originally Posted by curtropolis420

sooo i'm vegging with cfls but i don't wanna spend anymore money and i already have a 250watt MH thats putting out 20,500 lumens i know you only need 10k lumens per plant but is that for full flowering will it be dank if i use a mh to bud

If you're going to use MH for flowering get the WARM RED MH bulbs. They rock! Here's a link for ya:

http://cgi.ebay.com/400-watt-SUNMAST...QQcmdZViewItem

[RichardDean]

Originally Posted by CaliGrower

If you're going to use MH for flowering get the WARM RED MH bulbs. They rock! Here's a link for ya:

http://cgi.ebay.com/400-watt-SUNMAST...QQcmdZViewItem

that is good stuff but sorry to say the 39,000 lumens of CMH is probably still better than that 38,000 lumens of supposed red MH A good alternative but still not as good as CMH.

[curtropolis420]

word i would grab one if it was a 400 watter but its only 250 and its chill if i had the money i'd have a 1000w mh hps and cmh lol

[aregan35]

ed rosonthal once worte that he prefered buds grown under mh bucause of the resinous buds

[RichardDean]

because the MH does put out a little tiny bit more UV then the HPS which is next to nothing it will provide for more THC production but the lack of red hurts the yield a bit. THe CMH puts out a considerable amount of UVB compared to both and even has a warning on the box to not stay under the light with exposed skin for longer than 15 minutes as it can cause some mild sunburn. Pretty wicked if you ask me, gotta love that UVB.

[amnesiac]

if it wasnt ed rosenthal it was some other mustached dutchman who said you actually yield more with mh. dont kill the messenger im just relaying what one of my 10 cannabis vids said. i just switched out my 1000w mh with my new 600w hps 2 days ago because 1 for 10 isnt too good. "with good seed stock, growers yeild about 10-15 ounces of sinsemilla bud per 400w light every 2 to 3 months, however a 1000w halide will usually yield more bud, about 12 to 25 ounces per light, 65 to 90 days" that was ed. flowering with a metal halide is perfectly fine says the dutchman.

[curtropolis420]

i have my own money for business if you know what i mean so i honestly couldn't care less about what i yeild because i'm just smoking this to my dome ..... i'm getting tired of the half gooey bc has right now..blechh i'll enjoy my hella crystaly nugs for me even if its only a half or so

[curtropolis420]

why was that neccisary?

[G'kar]

Originally Posted by RichardDean

still surprised as to why most people on this site do not seem to know about Ceramic Metal Halide bulbs. THey are the end all of lighting, full spectrum and way more uv than any hps or mh could ever dream of producing

Is that so, all the CMH I have checked out put out 3000 K/3600 K, No where near the 6400K needed for VEG? What bulb you using ?

I guess they will work fine but IMHO one of each for veg and bloom is better if you have the grow room that can support the high wattage lamps. All the modern ballasts can take MH and HPS so the bulb costs are nominal. Not sure about the UV output of CMH tho so you may have a point there?

[RichardDean]

Originally Posted by G'kar

Is that so, all the CMH I have checked out put out 3000 K/3600 K, No where near the 6400K needed for VEG? What bulb you using ?

I guess they will work fine but IMHO one of each for veg and bloom is better if you have the grow room that can support the high wattage lamps. All the modern ballasts can take MH and HPS so the bulb costs are nominal. Not sure about the UV output of CMH tho so you may have a point there?

The one I used was a 4000k model so it was down the middle a bit. The Philips Mastercolor Super Whites are a bit different from the regular plain jane CMH bulbs of the past. Check the site in my sig for more info. My dream setup is definitely a 1000watt HPS with 4 400watt CMH bulbs on all four sides of the 1000 watter to cover the edges and boost up the middle even more so. Now that would kick some serious ASS!!!!