Club 315w lec

Neoangelo147

Neoangelo147

Well-Known Member
tst2015 said:
Nice. I've got a 4*8 tent. Was thinking about putting in a 3rd 315 for full coverage...but yours looks like it's doing well with just 2
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One thing I forgot to say about these lights is keep them as close to the canopy as possible. They run a lot cooler than hps so a fan blowing across the canopy really helps keep the bulbs cool.
 
Blue back

Blue back

Well-Known Member
Neoangelo147 said:
This is my 2nd round running these lights. Something I learned from previous runs with these 315’s is you want to keep your canopy as low/even as possible. These lights don’t penetrate well so growing trees will produce fluffy bottom buds. Scrog or LST seems to work good with these lights. Also something to consider is genetics and healthy plants. If genetics aren’t there no matter what light you use you won’t see the full potential. Plant health is another important thing to consider.
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I grow pretty good size trees but I cut ALL the under growth off so the tops grow big and rock solid. Yes there not the best penetrating lights that's why I also run a big T5 for side lighting. I'm going to keep them shorter next run. I believe I can crop just as much with smaller height wise as trees like you said. Best part about CMH is the massive resin production they pack on. Also like you said I don't care what lights you use genetics are #1.
 
Lucky Luke

Lucky Luke

Well-Known Member
Logan Burke said:
Has anyone noticed that they need to increase/decrease their nutes under CMH lights as compared to regular HID MH/HPS? I keep finding that I need to raise the ppm's much higher than when under typical HID's, I'm suspecting that the spectrum perhaps makes the plant consume more of certain nutrients, but really haven't been able to find a wealth of info on the net about this.
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mine drink more under the CMH.
 
ISK

ISK

Well-Known Member
.Smoke said:
Trying it out now between 2- 1000w hps. Harvest in a week or 2. Will see if it makes a difference.
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I was thinking of just replacing the 600 HPS with the 315 CMH.....but your post inspired me to add the CMH along side of the HPS.

The downside is the tent temp has risen, but I should be able to manage the extra heat (I cranked up the exhaust fan speed controller)

anyhow...thanks everyone for your feedback
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gr865

gr865

Well-Known Member
ISK said:
I was thinking of just replacing the 600 HPS with the 315 CMH.....but your post inspired me to add the CMH along side of the HPS.

The downside is the tent temp has risen, but I should be able to manage the extra heat (I cranked up the exhaust fan speed controller)

anyhow...thanks everyone for your feedback
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Can you seperate the ballast from the lamp. If you can move the ballast out of the tent, you can get longer power cables for them.
 
.Smoke

.Smoke

Well-Known Member
ISK said:
I was thinking of just replacing the 600 HPS with the 315 CMH.....but your post inspired me to add the CMH along side of the HPS.

The downside is the tent temp has risen, but I should be able to manage the extra heat (I cranked up the exhaust fan speed controller)

anyhow...thanks everyone for your feedback
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You'll be happy you did...
Glad to help out bongsmilie
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farmingfisherman

farmingfisherman

Well-Known Member
Hey total newbie indoor grower using both a Sun System Boss 315 3100k and two SF-1000 leds in a 4 x 4 tent. I'm looking for any advice on if dimming may or may not be a good idea when using a 315.. I've been told dimming the light changes the spectrum and there for shouldn't be done. The info I have read was for HPS/MH bulbs and didn't mention CMH. If this is the case then why does Sun Systems make my light with a dimmer? Also the light hangs the bulb horizontally not vertically, could this be why they include a dimmer, does this change the way the bulb operates? I'm starting week 3 or 4 depending on your point of view and so far plants appear pretty happy but I have had to raise lights repeatedly because of stretch. One plant a Sativa has appeared to have suffered stress from being too close to the light, yellowing fan leaves that eventually get crispy. I'm trying to train her down to match the rest of the canopy but unfortunately I'm running out of room. Suggestions or advice from other more experienced CMH growers is much appreciated.
 

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.Smoke

.Smoke

Well-Known Member
farmingfisherman said:
Hey total newbie indoor grower using both a Sun System Boss 315 3100k and two SF-1000 leds in a 4 x 4 tent. I'm looking for any advice on if dimming may or may not be a good idea when using a 315.. I've been told dimming the light changes the spectrum and there for shouldn't be done. The info I have read was for HPS/MH bulbs and didn't mention CMH. If this is the case then why does Sun Systems make my light with a dimmer? Also the light hangs the bulb horizontally not vertically, could this be why they include a dimmer, does this change the way the bulb operates? I'm starting week 3 or 4 depending on your point of view and so far plants appear pretty happy but I have had to raise lights repeatedly because of stretch. One plant a Sativa has appeared to have suffered stress from being too close to the light, yellowing fan leaves that eventually get crispy. I'm trying to train her down to match the rest of the canopy but unfortunately I'm running out of room. Suggestions or advice from other more experienced CMH growers is much appreciated.
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The only issue I'm seeing is nute burn all around on the tips of the leaves. Not light issues.
With the size your plants are with the cmh they should be under 52-55k Lux with no problem.
My 315 is in a batwing about 16"-20" above the canopy with no issues.
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farmingfisherman

farmingfisherman

Well-Known Member
.Smoke said:
The only issue I'm seeing is nute burn all around on the tips of the leaves. Not light issues.
With the size your plants are with the cmh they should be under 52-55k Lux with no problem.
My 315 is in a batwing about 16"-20" above the canopy with no issues.
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Nutrient issue is something I thought about but with the amount of food I've been giving I was leaning more towards a deficiency, I've been feeding with a bottled organic approach and have been feeding on the lighter side. I hope the near full strength feed I gave yesterday doesn't come back and bite me in the ass. Any knowledge on the dimming vs light height?
 
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