All BS set aside CMH yields

is it true or not


  • Total voters
    118

Go go n chill

Well-Known Member
It is what it is, everyone puts lights as "King", lights are important, no shit, but other factors come into play. Strain, grow method, nute selection, smart nute usage, environment and other nuisances are what makes for a successful grow.
I have had grows with top strains that something invariably will go wrong. From equipment failure, wrong nute mix at the wrong time, stupid mistakes and the like, we only strive to get it right.
Now I am speaking as a hobby grower, grow for my own meds and pleasure. So shit will happen.

My last few grows, three Critical Kush and 2 Blue cheese. I went out of town for a short holiday, came back to plants that were 7 weeks of veg and 5 weeks into 12/12 and were cooked, equipment failure. Could not even make oil from them, so into the compost bin they went. First time use of the 315W was to be a 315W/400W HPS vert grow but seed got lost in the mail, so ended up using two freebie seeds, Super Citrus Haze and on off brand WW. Since I did not have enough plants to do a proper vert, I ran a two plant horizontal with the 315 and a SS400 LED, rotating plants regularly. Pulled 15 zips of smokable bud. Then was the G13 Haze + 1 CK vert grow, CK was fucked, never produced, but I got 24.5 zips smokable bud of the G13 Haze, 1 + GPW. This was followed by this past falls grow of the LSD, 5 plant vert and only turned 17+ of smokable bud. Am in the winter 18 grow now, yield is not expected to be that great because I was not able to get in the veg time. But it is what it is. So for me I grow enough for my needs and if I have leftovers at the next harvest, that leftovers go to a group a Vet's with PTSD. They also get any clones I may have extra and advice on their grows.
As I stated above, everything that happens is based on Strain, LIghting, Method, Your Grow Environment, Nutes and there proper usage. Oh yeah, and grow experience, the more you do something the better you get.
I love growing my own meds and recreation, it is a soothing hobby for this old man.

GR
24oz out of one plant? How long a veg? That was a g13?? I got to try that. I’m still new but learning. I’be fuvked up before so now I’m at the “ just don’t kill them stage” it seems to be working I’ve grow nice buds but not 24 Oz from one girl in a closet
 

gr865

Well-Known Member
24oz out of one plant? How long a veg? That was a g13?? I got to try that. I’m still new but learning. I’be fuvked up before so now I’m at the “ just don’t kill them stage” it seems to be working I’ve grow nice buds but not 24 Oz from one girl in a closet
Look at the pics of my grow, I run a 5 plant vert grow, it was 4 plants that produced that, so 6+ from each plant. If I have wanted to trim it all it would have been around 26 to 27 zips, but I am lazy and used it to make oil.

And I am in a 4x4
 

gr865

Well-Known Member

AbeFroman

Well-Known Member
Recent pics? Two lbs is very possible in a 5x5 with that light, but probably not till you have your system dialed in. Looking good though.

GR
I will post an updated picture this weekend. They have gotten considerably larger. I added a trellis and am trying to keep it semi under control. Im hoping the stretch doesnt carry much into next week if at all.
 

Top notch

Active Member
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We're talking specifically the 315w Philips Elite Agro CMH here, the 630's just use two bulbs per fixture. These bulbs are not MH or even like other CMH bulbs. If you had used one of these I doubt you'd be saying to use them for veg only. You can pull a lb. of dry flowers with one 315w bulb in soil with these and top shelf quality.
View attachment 3567073
You got that right the sunsystems 315 w Phillips bulb is the best light out there I run 3 daisy chained to 1 plug and they're killing it in a 42"x9' room. Been pulling just a bit over 1lb per light or 3.5 lbs per 3 for over a year with no drop off from bulbs degrading. Line them things up guys you'll be shocked with a room full of tops like this.
 
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JohnDee

Well-Known Member
Hi Guys,
Sorry to barge in...and I haven't even read the entire thread yet. I have always been a MH devotee and recently picked up a used 315w LFSW ballast. It has a switch on the side to run the 210 watt bulb.

Never used either the 315 or the 210 but am thinking of going with a 210 watt for use in a 3x3 veg tent. Would that be too intense?
Cheers,
JD
 

5BY5LEC

Well-Known Member
I think 315 would be perfect for the 3x3. I have two sunsystem 315's and they recommend one lamp per 3x3. Start them 24" away and go from there.
 

5BY5LEC

Well-Known Member
Anytime! They are really great lights. They still put out a little heat but nothing that cannot be easily managed.
 

JohnDee

Well-Known Member
Anytime! They are really great lights. They still put out a little heat but nothing that cannot be easily managed.
Hey dude,
While a have a 315 guy online here...mind if I ask you another question? Looking for opinions on mounting. The Greenbeams vertical 315 seems very popular and is quite pricey. Most are horizontal. So that's my question...which orientation is best...or does it matter?
JD
 

5BY5LEC

Well-Known Member
I cannot really speak to the difference between vertical and horizontal.
If you were ask me to guess, I would say bulb orientation makes much less of a difference than other factors such as distance and coverage. Just my two cents. Sorry I could not give you a more solid answer.
 

MichiganMedGrower

Well-Known Member
Hey dude,
While a have a 315 guy online here...mind if I ask you another question? Looking for opinions on mounting. The Greenbeams vertical 315 seems very popular and is quite pricey. Most are horizontal. So that's my question...which orientation is best...or does it matter?
JD

The Phillips 315 LEC was designed with an open vertical reflector in mind. That is why greenbeams and sun systems made the original reflectors that way. They worked with Phillips on it.

The horizontal reflectors came later. As a band aid for lower ceilings and smaller spaces. It’s a compromise. And they are not meant to be air cooled but that solves problems for growers as well. They are designed to run hotter than a mh. That’s how they get the better spectrum. Hotter burning gasses and low frequency square wave ballast.

So if you have the space. The highest par is found under the sun systems open vertical reflector at 16” over a 2.5 x 2.5 area.

This is according to a ton of research I did last year before I bought mine.

Growers house has good prices and free shipping on some sun systems stuff.

I use the remote vertical hood and a galaxy cmh dimmable ballast.
 

JohnDee

Well-Known Member
So if you have the space. The highest par is found under the sun systems open vertical reflector at 16” over a 2.5 x 2.5 area.
MMG,
First...thanks for the very complete response. Just the info I needed. In my veg area (under construction) I'll have over 8' of headroom. So a vertical reflector would fit right in...just not one that's 4' wide! lol

I live in a cool climate so the heat produced is a plus. Saves me heating cost. I'm planning on adding two more 315s to my bloom room...but there, I may have to go horizontal.

Will definitely check out the sun and you even gave me a source for them! Much appreciated.
JD
 
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