turbobuzz
Well-Known Member
Not sure what you mean, but took these last night at day 49.Can you post the photo in the thread I cant view photos posted that way
Last edited:
Putting cmh to the test
- Thread starter growingforfun
- Start date
growingforfun
Well-Known Member
You can imbed the photos in the thread instead of posting them as attachments
growingforfun
Well-Known Member
With attachments I cant click them so all I see is basically nothing lol
turbobuzz
Well-Known Member
I tried using use full image option.
growingforfun
Well-Known Member
I can see them now, they look happy. Good job
growingforfun
Well-Known Member
Alright just finished chopping everything. My wife and I agree it would have been way better if we could have waiting the last 9 days to get the full potential. However it is what it is an it not too shabby. She thinks just shy of a lb an I think it's right about on it. There was 9 plants and so I only need a 2 oz average to hit 18 oz. Some plants were clearly over 2oz, some under. We will know soon what the weight is.
growingforfun
Well-Known Member
Well it turned into 348 grams dry. Not what I was hoping for but I also had to cut 9 days early because of the bananas and I couldnt risk the other area. Still its proven to have been a good choice to have ran the 315cmh. The bud is extremely resinous, more so than my 1kw de gavitas give me. Even the larger leaf is very sticky. I think I'll get a fair amount of hash from just the leaf via drysift, and I always use that for baking.
ttystikk
Well-Known Member
Find stable genetics. You lost weight because you pulled early. You did good in spite of the nanners!
Blue back
Well-Known Member
I can pull 18 or more with 6 plants. I do have 2 315's over a 4×4 though. I run Canna in Coco, Superthrive and a little Cal-Mag. I definitely get more than 3 Oz's per plant. My first run I only had one and the difference is very noticeable. Get another 315 over them and I'll bet they kick the shit out of your 1000. You only need 3 o's per plant to harvest 27 z's.
growingforfun
Well-Known Member
I had to run only 1 315 due to heat reasons, summer is coming. This wasn't about max yield it was about trying to keep the plants alive, or turning off the light and cutting them down.
At this point all my 1kw hps are tuned down to 600 watts to maintain 78 running lights at night and here shortly I'll be turning off one of the fixtures entirely, possibly both of the hps fixtures.
It gets pretty hot where I live, soon it will be 80 at night and ac isnt a option unfortunatly. Last year I was able to keep a 1kw hps going in flower all summer but this year I stocked up an bit and this extra 3/4 lb harvest helped with that.
growingforfun
Well-Known Member
Ya they are pretty stable overall its def because of the side light hitting them funny. The 315 only being on 10 hours with the other lights in the room on 12/12 would stress any strain in hindsight I guess.
The last week is when a lot of weight comes in so it's kinda a bummer but at the same time the alternative woulda been a pile of compost lol so I do kinda view it as a free 3/4lb
Blue back
Well-Known Member
May I ask why isn't ac an option? I have a portable in my room. The whole room is only 4x12 so it cools easily. With the door open while lights are on and the amount of airflow I have it hardly kicks on. I cut a hole in the door for the exhaust to go out a window. I got a good rated one for $250. Works wonderfully.
growingforfun
Well-Known Member
Well it's a basement with cement walls and only one small 4 inch exhaust port. For the size area and ground temps it's just not practical
growingforfun
Well-Known Member
Ok so we are now into the next run.
The area with the 315 cmh is look pretty small. Even with the plant centered on the light it's not doing all that great. And that makes me think that I may have been onto something starting flower with the 1kw hps and doing the second half with the 315 cmh. It did just fine carrying on the already well formed buds.
On the other side of the room I have a set of plants grown under my DE gavita hps the first 7 weeks of flower, and I just replaced that bulb with a DE cmh made by @GoBrah
The area with the 315 cmh is look pretty small. Even with the plant centered on the light it's not doing all that great. And that makes me think that I may have been onto something starting flower with the 1kw hps and doing the second half with the 315 cmh. It did just fine carrying on the already well formed buds.
On the other side of the room I have a set of plants grown under my DE gavita hps the first 7 weeks of flower, and I just replaced that bulb with a DE cmh made by @GoBrah
growingforfun
Well-Known Member
So now I'm into my review of @GoBrah cmh bulbs. They appear to be well made, fired up no issues. I'm deffo skeptical about them running on a high frequency hps ballast, but we will see how they hold up. This strain doesnt get much leaf frost under hps bulbs, but last run where u finished under cmh they frosted up clear to the fan leaf. These have about 2 weeks to go and the bud is already very heavy so if they frost up more than normal and the bulb doesnt harm the plants I'll count it as success.
Lucky Luke
Well-Known Member
Low freq square wave ballast's give the plant more light as well.
Its a nice little experiment your doing but at the end of the day the Ballasts play a huge roll.
yep, its unfair to blame the fail on bulb everytime, ballast does play the most important role.
our goal is made strong cmh can use on hps ballast, so grower save money on a separate ballast.
LF normally is more friendly than HF to CMH indeed, but a good quality HF ballast is doing well also.
growingforfun
Well-Known Member
Yes I get that and that's my main hesitation when using these bulbs that @GoBrah gave me. This is just a fair test with no expectations, this product is in development as far as I know and all feedback negative and positive is welcome, and that's what I'll give. I plan to start my next run with them so I'll really have a good idea, my schedual has been super hectic so I've actually had these bulbs sitting a few months.
At the end of the day if these work out I can see a benifit to having a cmh that can run on a hf hps ballast, even if it's not a dedicated square wave cmh ballast.
My current line of thought is that starting a flower cycle with hps and ending with cmh is very workable, and this is a ideal way to test these bulbs, in my opinion. None of what I'm doing was recommended or asked of me by @GoBrah. He ONLY asked me to test the bulbs and see if they work in my gavitas.
ttystikk
Well-Known Member
I've run 860W CDM on LFSW ballasts and mag. They wouldn't even strike on a high frequency digital.
I ran 315W CMH on Philips LFSW ballast, they did great and lasted forever.
I'm very curious about what was done to those lamps that they could now withstand high frequencies?
If it works without longevity problems, I see no reason why it wouldn't be just as efficient as LFSW; it's not like the lamp can dim fast enough between cycles like it does at 60Hz.
Do you have any insights here?
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