Club 315w lec

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growingforfun

Well-Known Member
Madmungo said:
Mate, the outer jacket on a 315 open fixture lamp lamp blocks virtually all the uv from a cmh, unless you're running an single jacket in an open fixture (dangerous!)
Then you're not getting uv, also you can't get a sun tan through a window either, same principal.
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Dude havent you ever riden in a car all day and gotten sunburnt ? Sat in a chair by a big window all day reading? Maybe im a vampire or somthin but "it burnses us"
 
Growdict

Growdict

Well-Known Member
but people run 2x1000w hps in 4x8 all the time. so, depends on your ventilation. you could always get the air cooled hoods and then you have the option.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
GroErr said:
Quality is somewhat subjective but I have a pretty good nose and taste buds and my buds have never smelled or tasted better under COBs. I also had several comments from people I share with after I switched, many asking what the "new strains" were (same strains/phenos grown under different lighting). Quality and terps were great under the 315's but definitely a step up from that with 3590's ime.

Not a tech snob and will likely use my 315's again if the situation calls for them. But I'd definitely stop short of saying quality is better under 315's and I used them for 2+ years. I've yet to see anyone say "I should have stuck with hps or CMH" after switching over to COBs.

BTW: I define quality in the context of smell, visual and taste. Not how high the THC is, THC is one of 70+ cannabinoids and only one factor in how high you get.
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On the same videos I mentioned earlier that proved the 4% in THC with cmh the testers mention the smell and taste of the cob led grown pot is better and they noticed immediately.

But just because we focus on the THC in tests doesn't mean all of the cannabanoids have not been increased. I notice better flavor and all around quality of high with cmh over hps alone.

I will try cobs eventually. They are still 2x the cost of hid per square foot of Grow space. And I might need a heater in winter if I convert. And that is quite inefficient.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
ThaMagnificent said:
So go with 4? open hood? I read a glass running it closed and cooled is bad because the glass blocks the uvb from the light.

I actually had a few Amare LEDs laying around and a Johnson CX9. Was thinking of running 2 - 315s with an LED in the middle...
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Sunlight supply makes specific air cooled reflectors for these lamps so the bulbs don't get cooled directly. Sorry. I have no experience. My fixture is the open vertical one.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
Growdict said:
mmg, what is your total watts, exhaust cfm and cu ft?
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You can page a member by typing @ and the user name. It makes an alert. I might have missed this.

I have 2 600's in air cooled blockbusters over a 3.5' x 7' area and in an "L" shape 1 open 315 LEC over a 2.5' x 2.5' area.

I exhaust the room through the ac reflectors with passive intakes in winter and active in summer to push the house air conditioning into the flower room.

The room is 9'x7' and has a third open space. There is a second 6" exhaust also with a carbon filter ( both fans are 315cfm) to help with the 3rd open lamp as needed. I have 2 fans pushing and pulling air through the reflectors and carbon filter.

So 3 6" fans total but only 2 exhausts.

The room is about 400 cubic feet. 9x7 x 6.5 ceiling.

And with the duct runs I likely turn the room air every 2 minutes on max.
 
M

Madmungo

Well-Known Member
rkymtnman said:
completely wrong. the mogul base 315 philips bulb puts out the most uv compared to the 2 pin models but they still put out uv.

if it's an open rated bulb then it's designed to be run open. the outer envelope is designed to contain a bulb failure.
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I thought we were talking pgzx18 lamps?
 
GroErr

GroErr

Well-Known Member
MichiganMedGrower said:
On the same videos I mentioned earlier that proved the 4% in THC with cmh the testers mention the smell and taste of the cob led grown pot is better and they noticed immediately.

But just because we focus on the THC in tests doesn't mean all of the cannabanoids have not been increased. I notice better flavor and all around quality of high with cmh over hps alone.

I will try cobs eventually. They are still 2x the cost of hid per square foot of Grow space. And I might need a heater in winter if I convert. And that is quite inefficient.
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Yeah the COBs aren't necessarily the best option for every situation for sure. If you have to modify and spend money on other environmental controls you have to look at the hassle and costs of that as well. They fit better into my small flowering space (35 sq. ft w/7ft ceilings) reducing temps with no changes to environmental equipment/controls. If I were to move into a larger op, specially somewhere like a warehouse with high ceilings, I'd probably lean towards CMH over COBs (other than a 3x3 for my personal under COBs - lol). From a production stand point, all other factors being equal and dialed in properly, I think the techs are pretty close as far as production.

There's also no law stating you can't mix them ;) Both are top notch within their respective technologies and way ahead of hps/hid tech. No question or subjectivity there.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
GroErr said:
Yeah the COBs aren't necessarily the best option for every situation for sure. If you have to modify and spend money on other environmental controls you have to look at the hassle and costs of that as well. They fit better into my small flowering space (35 sq. ft w/7ft ceilings) reducing temps with no changes to environmental equipment/controls. If I were to move into a larger op, specially somewhere like a warehouse with high ceilings, I'd probably lean towards CMH over COBs (other than a 3x3 for my personal under COBs - lol). From a production stand point, all other factors being equal and dialed in properly, I think the techs are pretty close as far as production.

There's also no law stating you can't mix them ;) Both are top notch within their respective technologies and way ahead of hps/hid tech. No question or subjectivity there.
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I really may buy cobs for my 4th light when I move my Grow to a new room in my basement I will build in time. Then I can compare all the lights. Hps, mh, cmh and led.

The 4 way comparison Grow could be a forum favorite eh?
 
Yodaweed

Yodaweed

Well-Known Member
MichiganMedGrower said:
I really may buy cobs for my 4th light when I move my Grow to a new room in my basement I will build in time. Then I can compare all the lights. Hps, mh, cmh and led.

The 4 way comparison Grow could be a forum favorite eh?
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I'm mixing my 315 CMH with two 600w hps and two area 51 panel LEDs (R/W 160 with cree XTE red and cree XTE white) , to cover the max area in my room, seems to work well.
 
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