Club 315w lec

[GreenNucleus]

I’m sure it’s not exactly 200cfm if the fan is turned down to 50% of its power, but it’ll be close to it. Attached to a 200cfm carbon filter, good chance it should work out right?

I’m sure that combo wouldn’t work that great especially if your 6” carbon filter has a much higher cfm rating than your 4” fan.

I don't think fan power (CFMs) are a linear relationship. I think they follow a logarithmic relationship. Double check me on that but 50% power of a 420CFM fan, will be quite a bit lower than 200 CFM. But double check that.

 

[plzy24blk]

I don't think fan power (CFMs) are a linear relationship. I think they follow a logarithmic relationship. Double check me on that but 50% power of a 420CFM fan, will be quite a bit lower than 200 CFM. But double check that.

Okay okay cool thanks for your feedback. I figured. I was assuming turning down the fan to 50% power would roughly be around 200cfm, give or take. Or close to it

Another question as a matter of fact. Since my fan is 420cfm, and I have a phresh filter rated @ 400cfm. They would go well with each other, correct? And I know if too much cfm is passing through a filter that is rated for less cfm, for example a 500cfm fan connected to a 250cfm filter, would run efficiently, correct?

So let’s say I have my 420cfm fan connected to my 400cfm filter. Would turning down the fan to roughly about 200cfm, effect the efficiency of the filter? Since only 200cfm would be rubbing through the filter and not 400cfm?

So would y’all say I am better off getting a 4” filter (200cfm) and turning down the speed of the fan, or connecting the fan to my 6” filter and turning it down?

420cfm is overkill for my grow tent and I am also trying to reduce the noise coming from my fan.

 

[Growmanthumb]

with

 

[CalmedDown]

Sorry if it’s been answered guys I have read a lot of pages but needed an answer and didn’t have time for all pages. But I needed to know how many BTU per 315. And not the simple answer of 3.41 per watt because that would mean that it would be under 4K btu per 1k but most people figure them at 6k btu. Anyone running multiple 315’s sealed with mini split and open hoods?

 

[trenton735]

Sorry if it’s been answered guys I have read a lot of pages but needed an answer and didn’t have time for all pages. But I needed to know how many BTU per 315. And not the simple answer of 3.41 per watt because that would mean that it would be under 4K btu per 1k but most people figure them at 6k btu. Anyone running multiple 315’s sealed with mini split and open hoods?

What else is in your room putting off heat? Your math is right. I think most people get a little bigger than what they need to account for ballast, water chillers, etc also puttin off heat in the room. 315s won’t put off much heat on their own.

 

[CalmedDown]

What else is in your room putting off heat? Your math is right. I think most people get a little bigger than what they need to account for ballast, water chillers, etc also puttin off heat in the room. 315s won’t put off much heat on their own.

Wall fans, dehuey, maybe a C02 burner(need to research as have seen people have trouble with some fumes or something). I was just hoping someone had a figure like they do per De hps figure. For instance I hear that if you figure 6k btu per 1k that leaves enough extra room to cool C02 burner and dehuey. I was really hoping that a 12k mini split would do the job for 8 x 315 but now I’m not sure. Was hoping someone would chime in that had experience in cooling multiples with a mini split. My math right now say 315x8= 2520 watts x 3.41btu =8593 btu. By that theory a 9k btu would cool the lights and I’m sure that is wrong.

 

[trenton735]

Wall fans, dehuey, maybe a C02 burner(need to research as have seen people have trouble with some fumes or something). I was just hoping someone had a figure like they do per De hps figure. For instance I hear that if you figure 6k btu per 1k that leaves enough extra room to cool C02 burner and dehuey. I was really hoping that a 12k mini split would do the job for 8 x 315 but now I’m not sure. Was hoping someone would chime in that had experience in cooling multiples with a mini split. My math right now say 315x8= 2520 watts x 3.41btu =8593 btu. By that theory a 9k btu would cool the lights and I’m sure that is wrong.

I’d get a 12-15k btu unit personally. Just to have the extra cooling power. Probably lean towards 15k so that way it’s not working close to max power to Cool the room with 8 lights, ballasts, fans, dehu, C02, etc. If anyone else has any input feel free to chime in. But I think you’ll be fine.

 

[CalmedDown]

Thanks man, yeah most the of minis I have been looking at were either 12k or 18k. So I guess I’ll just save a lil more money and go for 18k one with inverted compressor so even if is oversized it will work well. I have never run a sealed room before but don’t want to air cool the bulbs and didn’t figure could cool roughly 3k(all included) with just exhaust fans maybe I’m wrong if so that would save me a ton of money and work..but I’d have no way of really knowing without trying and can’t be down for weeks waiting on mini split if I can’t cool it with exhaust

 

[trenton735]

Thanks man, yeah most the of minis I have been looking at were either 12k or 18k. So I guess I’ll just save a lil more money and go for 18k one with inverted compressor so even if is oversized it will work well. I have never run a sealed room before but don’t want to air cool the bulbs and didn’t figure could cool roughly 3k(all included) with just exhaust fans maybe I’m wrong if so that would save me a ton of money and work..but I’d have no way of really knowing without trying and can’t be down for weeks waiting on mini split if I can’t cool it with exhaust

First I’d make sure your room has enough power to run all that as well. Because if it doesn’t AC will be the least of your worries

 

[CalmedDown]

I am installing a sub panel just for the room and mini split so The electric is no problem. Have had to learn many trades over the years fo this hobby, electric is a new one to me but I feel confident I can do it.

 

[thccbdhealth]

Day 20 of 12/12
PinkGravy-JAH- Platinum pheno
3100k Philips315cmh. 4200k Ushio315cmh

@DonTesla

 

[thccbdhealth]

Flipped the fixtures
side for side
Day 21

 

[Forrestfirebuds]

Well, heck, I think I found my light! Horizontal, wide double parabola Double-Ended 630 CMH, @ 3000K! more red and a little more UV as well...Same price as a Sun Systems 315, @ $545

http://growershouse.com/growers-choice-horticultural-lighting-630w-de-cmh-complete-fixture

I have to jump in on this conversation cuz I love a good old comparison of lights. I've done light setups in all kinds of ways. My new setup combines the hortilux 600 ballast that runs those new ceramic hps lights with a cmh 315 under a big ass hood(28"x34") and then I surrounded the hood with led cob lights. Talk about missing no light spectrum. And in veg I just use the metal halide blue daylight bulb instead of the ceramic hps which is for flower.

 

[trenton735]

I have to jump in on this conversation cuz I love a good old comparison of lights. I've done light setups in all kinds of ways. My new setup combines the hortilux 600 ballast that runs those new ceramic hps lights with a cmh 315 under a big ass hood(28"x34") and then I surrounded the hood with led cob lights. Talk about missing no light spectrum. And in veg I just use the metal halide blue daylight bulb instead of the ceramic hps which is for flower.

How do you like the ceramic hps?

 

[remington_tuff_lipz]

Hey great thread....lots of good info......so I have jumped off the led wagon and recently purchased 2 of the SunSystem 315 LEC fixtures both with 3000k Phillips bulbs.I have just set 1 up inside a new 3'x3'x6'6" fusion hut grow tent.The light puts off some heat,i haven't set up the exhaust fan yet,and haven't had a chance to grab a couple small clip on fans to circulate air inside the tent.So the temp right now is staying right around 30° or 90°,my room is air conditioned and it's set at ,20° or 70°.I am just waiting for the sonoff th16 I ordered to show,then I will wire that up to my exhaust fan and set it to go on and off by temp inside the tent...The light looks great and I hope iIdont regret the purchase,from what I have seen here and read elsewhere before purchasing,i think i will be pretty happy....The tent on the other hand,its the less expensive of the fusion hut models and there are what look like scratches in it that light comes thru... pretty light material.I germinated 9 seeds.........8 reg sacred cut seed co. DTK (dos-i-dos x triangle kush) all sprouted and i popped 1 fem Florida OG from DNA genetics.

 

[DonkyDikBuds]

Has anyone heard anything about this ballast? Ive been on the hunt for a 315 ballast with the exact philips components we know work the best. Aside from the sun system lec, this PROSPEC is the only ballast I have come across with the actual philips components. Im looking for something in the price range of like the prism science ballast. Which I can not comfirm has the philips components. Any thoughts gentleman?

 

[pinner420]

Has anyone heard anything about this ballast? Ive been on the hunt for a 315 ballast with the exact philips components we know work the best. Aside from the sun system lec, this PROSPEC is the only ballast I have come across with the actual philips components. Im looking for something in the price range of like the prism science ballast. Which I can not comfirm has the philips components. Any thoughts gentleman?

Looks like 110v model...

 

[Opie1971]

I'm thinking of getting a 315cmh soon, will it be too hot in 2x4x5? 4in exhaust fan pulling air out into a 4in carbon filter..

 

[DonkyDikBuds]

Sounds good

 

[Bad Karma]

I'm thinking of getting a 315cmh soon, will it be too hot in 2x4x5? 4in exhaust fan pulling air out into a 4in carbon filter..

You really need a bigger tent (3'x3'x6.5') and exhaust fan (6"). With only a 5' ceiling you'll have to sacrifice veg time, and therefore yield, by flowering early to control plant size (even if you do LST).

If you're going to do it, do it right, and start from scratch. Sell off what you have and use the proceeds to get a bigger tent, and fan, to properly compliment a 315.

As for heat management, buy a CMH with a remote ballast, and keep it outside of the tent.