Club 315w lec

Underground Scientist

Well-Known Member
with the XXXL hood you kinda need 3 315 bulbs as the spread is so big. I have a XXXL hood and it covers a 5x6 area with a 1k bulb at 24 inch over canopy and maxes out LUX app on phone at canopy at those distance with new bulb. I have to go another 6 inch lower or out to get meter to start dropping. Its a huge hood. Do you have a regular hood? or lower it down another 8 inches to 16" over canopy. Tent looks great.
Honestly, they're really compact and I could use some stretch, which is one reason I put the light a little higher than normal, but the plant growth is immersed in 45,000 - 35,000 lux, I like pushing tops over 60,000 lux, but it's early in the game yet.
 

Underground Scientist

Well-Known Member
Honestly, they're really compact and I could use some stretch, which is one reason I put the light a little higher than normal, but the plant growth is immersed in 45,000 - 35,000 lux, I like pushing tops over 60,000 lux, but it's early in the game yet.
I have one Sun Systems Vertical reflector, I'll have another in a week. I plan to switch...for the record. I think that I can grow real efficiently in a 5x4 space with 2 - 315 LEC's. I'll be using the lux meter to measure canopy intensity, maybe T-5 for any low intensity perimeter pockets.
 

dangledo

Well-Known Member
https://growershouse.com/blog/cmh-315w-lamp-comparison-test-data-review/

Phillips 3100k beats other bulbs by 8% average PAR

Ushio has 1% higher uv but is 10% lower in par.

In my side by sides the Phillips lamp yields as much as 30% less than my 600 Hortilux super hps. And the 600 hps pot was chosen as more potent almost every time in our blind testing.

Wattage is still king. Don’t believe the hype.

I had posted last year that the cmh grew more potent pot but we removed the cmh from the room and potency and frost were as high or higher each clone run.

The benefits of the 315 over the hps are it helps keep plants shorter and more compact at the expense of somewhat leafier buds. And it brings out more fall colors and shortens ripening up to a week on some strains. And it keeps plants greener. It also is a low watt easy to use bulb. Too low watt for best results as a single flowering lamp in my opinion.

The 315 footprint for flowering is also smaller than even a 400 hps at 2.5’ x 2.5’. That is with the ss open vertical reflector made specifically for the bulb at 18”.

The best buds were grown with both lamps. The 315 cmh is a fantastic supplemental lamp to complete a great flowering spectrum with hps.
broken-record-gif-1.gif
 

dangledo

Well-Known Member
Meao Thai week 7. I'm guessing half way there. Hopefully worth the wait.

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I had zero intentions of going vertical, but 7 days into stretch it was clear she was gonna go crazy. Had to lop a bunch of branches to get her to fit. Limited room at 6 foot ceiling. 20 gallon brute. 2+year old bulb
 

DCobeen

Well-Known Member
I have one Sun Systems Vertical reflector, I'll have another in a week. I plan to switch...for the record. I think that I can grow real efficiently in a 5x4 space with 2 - 315 LEC's. I'll be using the lux meter to measure canopy intensity, maybe T-5 for any low intensity perimeter pockets.
If I added in a t5 I would use ATI Actinic bulb and coral plus one on each side. I have used those bulbs and grown some super dank a couple years back.
 

chomchom

Well-Known Member
Meao Thai week 7. I'm guessing half way there. Hopefully worth the wait.

View attachment 4091212 View attachment 4091213
View attachment 4091215

I had zero intentions of going vertical, but 7 days into stretch it was clear she was gonna go crazy. Had to lop a bunch of branches to get her to fit. Limited room at 6 foot ceiling. 20 gallon brute. 2+year old bulb
That should def be worth the wait. I brought back a bunch of seeds from Cambodia and I’ll start them after I harvest this run of indicas.

Looks good!
 

gwheels

Well-Known Member
20180216_113144.jpg 20180216_113128.jpg This round I really screwed up a few things (didnt clean the rez, ran 2 lights and they produced too much heat and did not adjust the fan right, had issues with my RO machine). My last grow filled the tent and you could not see an autopot. Good excuses eh :) Actualy it is true and it will drastically effect yield BUT. Wow the buds on the 3 plants are heavy. The branches on a few are starting to fall over. Chop is Friday I just saw the odd amber trich with my scope so that is good enough for me.
What I can say that is positive is that white rhino and cheese both have a lovely different aroma from what I have grown. The 315 also really made the trichs go nuts compared to my other grows and they are really dense and heavy buds. Look at the frost :DView attachment 4093117 View attachment 4093117

Day 60 cheese (8 to 9 week flower strain) and it is right on the mark for timing.
 
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DCobeen

Well-Known Member
View attachment 4093122 View attachment 4093125 This round I really screwed up a few things (didnt clean the rez, ran 2 lights and they produced too much heat and did not adjust the fan right, had issues with my RO machine). Good excuses eh :) Actualy it is true and it will drastically effect yield BUT. Wow the buds on the 3 plants are heavy. The branches on a few are starting to fall over. Chop is Friday I just saw the odd amber trich with my scope so that is good enough for me.
What I can say that is positive is that white rhino and cheese both have a lovely different aroma from what I have grown. The 315 also really made the trichs go nuts compared to my other grows and they are really dense and heavy buds. Look at the frost :DView attachment 4093117 View attachment 4093117

Day 60 cheese (8 to 9 week flower strain) and it is right on the mark for timing.
at least you know what to change. we all have grown un happy plants. I know I have.
 

chomchom

Well-Known Member
View attachment 4093122 View attachment 4093125 This round I really screwed up a few things (didnt clean the rez, ran 2 lights and they produced too much heat and did not adjust the fan right, had issues with my RO machine). My last grow filled the tent and you could not see an autopot. Good excuses eh :) Actualy it is true and it will drastically effect yield BUT. Wow the buds on the 3 plants are heavy. The branches on a few are starting to fall over. Chop is Friday I just saw the odd amber trich with my scope so that is good enough for me.
What I can say that is positive is that white rhino and cheese both have a lovely different aroma from what I have grown. The 315 also really made the trichs go nuts compared to my other grows and they are really dense and heavy buds. Look at the frost :DView attachment 4093117 View attachment 4093117

Day 60 cheese (8 to 9 week flower strain) and it is right on the mark for timing.
That’s farming for ya. Nothing like making a mistake on several hundred acres. I’d have to wait years sometimes for a do over with perennials. There’s always a bright spot tho...besides the learning.
 

MichiganMedGrower

Well-Known Member
Hey Michigan,

So would you prefer using 4 x 315 LEC or 2 x 1K HPS in a 8X8?

Those aren’t enough to cover 8’ x 8’.

I use 2 600’s for 3.5’ x 7’. And the 315 covers 2.5 x 2.5.

I would want and will set up in next space. 2 600 hps with 1 315 LEC in the middle over a 4’ x 8’ space.

So for your 8x8 I would use 4 600’s and 2 315’s.

Or 6-8 315’s would work well too. Or 4 600’s.

1000 watt hps covers about 5 x 5.

These numbers are for single ended bulbs. Double ended bulbs cover more but need more height.

I keep my lamps 16”-18” over the canopy for the coverage.
 

gr865

Well-Known Member
Using two 315's in my 4x4, in actually I am only using 3/4 of my tent, ventilation and fan take up the other 1/4. For a 8x8 I would use 6 - 315's. That would be a bit of overkill but not much and 4 - 315's I don't think will give you what you want. I think that would be a TIT's grow.
It is said that a 315 CMH is the equivalent of 500 W's of HPS, so if that is the case you would have 3,000 W of light, using only 1,890 W's.
You just need to do the math of the different options.
 

MichiganMedGrower

Well-Known Member
Using two 315's in my 4x4, in actually I am only using 3/4 of my tent, ventilation and fan take up the other 1/4. For a 8x8 I would use 6 - 315's. That would be a bit of overkill but not much and 4 - 315's I don't think will give you what you want. I think that would be a TIT's grow.
It is said that a 315 CMH is the equivalent of 500 W's of HPS, so if that is the case you would have 3,000 W of light, using only 1,890 W's.
You just need to do the math of the different options.

Plants even at the 3’ edge under the sun system vertical reflector with the Phillips 315 3100k bulb which has the highest par of all of them lean in to the center to get more light.

I would definitely want 2 for a 4x4 but really 3 x 6 seems ideal.
 

gr865

Well-Known Member
Plants even at the 3’ edge under the sun system vertical reflector with the Phillips 315 3100k bulb which has the highest par of all of them lean in to the center to get more light.

I would definitely want 2 for a 4x4 but really 3 x 6 seems ideal.
Yes I agree, this is my first horizontal run with the two 315's and I have them tied down but they still lean in a bit, but my plants did that when I 400W HPS. There a falloff at a given point, i don't know anything about par or that light stuff, lol. Just what is working for me.
 

MichiganMedGrower

Well-Known Member
Ok so given a 4x8
Would you advise to go with 3 315cmh's
3100,4200,3100k?

Or with 2 600w hortilux super hps with a cmh centered between them?

I have not tested multiple 315’s but I plan to do 2 600’s with the LEC in the middle next room build.

I have to insulate and heat my open basement first.

Otherwise I think 3 315 3100k would be best for flowering 4x8. Maybe 4. The penetration is also much less with the 315 than the Hortilux 600 hps.

I can get about 2 feet of dense buds down with 600 w hps. Only about a foot to 18” down for 315 LEC. That is comparing 1 lamp only. Can’t say how overlapping will change that.

Most of my yield loss from using only the 315 vs. the 600 was from lower bud production. The tops were nice and big with both lamps.
 

gr865

Well-Known Member
Using two 315's in my 4x4, in actually I am only using 3/4 of my tent, ventilation and fan take up the other 1/4. For a 8x8 I would use 6 - 315's. That would be a bit of overkill but not much and 4 - 315's I don't think will give you what you want. I think that would be a TIT's grow.
It is said that a 315 CMH is the equivalent of 500 W's of HPS, so if that is the case you would have 3,000 W of light, using only 1,890 W's.
You just need to do the math of the different options.
I am sorry I was wrong, for an 8 x 8 I believe you will need 8 - 315's. And the height varies, I run mine at around 18" in flower, Merlin runs his 50,000 sq ft commercial grow much higher. So you will have around 4,000 W of light in you tent. I think that would kill it dude.
This is current grow, taken yesterday @ 23 days into 12/12, a true frost factory.
20180220_205858 (2).jpg
That's under 2- 315's @ 18", coco and drip DTW.
GR
 
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