Register ICMag Forum Menu Features Search Today's Posts Mark Forums Read
You are viewing our:
in:
Forums > Marijuana Growing > Growroom Designs & Equipment > Growroom Lighting > Keep my see 1k hps or switch to cmh???

Thread Title Search
Click for quality CMH grow lights at Ceramic Solutions!
Post Reply
Keep my see 1k hps or switch to cmh??? Thread Tools Search this Thread
Old 10-11-2018, 03:12 AM #51
Dirt Bag
Member

Join Date: Jan 2017
Posts: 205
Dirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the rough
We're torn. We want to switch to CMH too. Our flowering table is 4'x8' and our ceiling is 8'. We could go with two 630s and I'm sure it would be okay. But we're looking for optimal light coverage and I think we could do better. Five 315s, though costly, would provide much more even coverage as well as at least 20% more total light.
The rep from Sun System says the LEC 315 BOSS Commercial light, though horizontally mounted, actually provides more light than the vertical type and have the additional advantages of a lower profile as well as etelligent control and multiple voltage capabilities.
If money were no object, we'd definitely get five LEC 315 BOSS with the etelligent controller. These would use half the electricity as our current setup.
If we had 9 x 3 we'd just get three. Cross lighting would accommodate the extra few inches. I bet a quality 315 would be absolutely fine for 3x3. My suggestion to SG is, just get one 315 and see how it works over a tray.
Dirt Bag is offline Quote


Old 10-11-2018, 03:16 AM #52
Miraculous Meds
Senior Member

Join Date: Sep 2014
Posts: 4,180
Miraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant future
Quote:
Originally Posted by sturgeongeneral View Post
My current setup isn't air-cooled at all running 2k hps in a 9.5 long x 7 ft room. With a 81.75 inch floor to ceiling. After doing all the math, in order to run a cmh and still keep 24 inches between light and canopy I'm going to have to some how drop my tray. Overall height is 81.75". tray/stand/res is 23". Canopy to light 24". That's what I'm working with...


You still going to do 3 3x3 trays?


Ive been through a lot of what your trying to figure out. Heres some ideas I came up with.


First of all, go for the cmh and use phillips bulbs, if using the 315s or dual 315s. They will produce as good as hps de. Ive seen side by sides and they are close in total yield and quality. Cmh looked better to me. I told Isaac to go for them , and he crushed it, and replaced his whole room with them. They aren't light years ahead of any of the other light tech, but they are at the top with them in quality and production, and seem to produce superior resins, both trichomes and oils that are sticky/tacky on the leaf and bud itself.


Id go with 4 315s to cover 3x9. But if you want to match similar wattage as your 2k, then go for 6 315s, or 3 630s. ( im not against the 630cmh de's, I just don't have any experience with them, id refer to hammerhead in the cmh threads on those)


Now on the 7' ceilings and table height. Not sure what tables you have, but my quick fits can adapt to 4", or 12" with wheels. Also they can sometimes be flipped over to reduce height. Probably would have to do top feed dtw because of lowering the table, and maybe have to have a sump station for the drain water if you don't have a low enough access to drain plumbing.


If you go with horizontal positioned bulbs and hoods, then you can use the shallow hoods, or adjustawing types, that only sit about 6" from the ceiling.


Screw air cooled imo. Don't need the extra glass between bulbs, and you can cool efficiently enough as is with 2k of lights.


What else, distance from bulb to canopy... 24" would be nice, Isaac just mentioned he'd like to have 36" running a whole lit room of cmh. In your situation with a little more room space but not totally lit, 24" might be fine, but you will get heat or light intensity stress directly under the bulbs if you get much closer. You should stay around 18" away on the 315's.


Any more questions just holler.
Miraculous Meds is offline Quote


1 members found this post helpful.
Old 10-11-2018, 03:32 AM #53
Miraculous Meds
Senior Member

Join Date: Sep 2014
Posts: 4,180
Miraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant future
Quote:
Originally Posted by Dirt Bag View Post
We're torn. We want to switch to CMH too. Our flowering table is 4'x8' and our ceiling is 8'. We could go with two 630s and I'm sure it would be okay. But we're looking for optimal light coverage and I think we could do better. Five 315s, though costly, would provide much more even coverage as well as at least 20% more total light.
The rep from Sun System says the LEC 315 BOSS Commercial light, though horizontally mounted, actually provides more light than the vertical type and have the additional advantages of a lower profile as well as etelligent control and multiple voltage capabilities.
If money were no object, we'd definitely get five LEC 315 BOSS with the etelligent controller. These would use half the electricity as our current setup.
If we had 9 x 3 we'd just get three. Cross lighting would accommodate the extra few inches. I bet a quality 315 would be absolutely fine for 3x3. My suggestion to SG is, just get one 315 and see how it works over a tray.

In your situation 2 630s on the ends and a 315 in the middle might do well, but springing for 3 630's would kick ass.


For sg, 3x3 is a bit of stretch in flower for 315s. Maybe if you had a grid of 9 in a square formation, but you will not be happy with outer performance of a 3 x 3 canopy over 1 tray. Ive ran 315s side by side in a 3 x 6 foot print and its not enough light intensity to develop the bud fully. This was tested with long held strains that I know like the back of my hand. Ive also ran 2'x3' footprint with 6 315's, and had to be 24" away or id get severe light intensity stress. Ive also tested 4 630s in a 8x8, and was very happy with the performance of the entire canopy. Got light stress when closer than 24" on those runs too. 30" light distance seemed perfect for that light pattern.
Miraculous Meds is offline Quote


2 members found this post helpful.
Old 10-11-2018, 05:08 AM #54
Scrappy-doo
Senior Member

Scrappy-doo's Avatar

Join Date: Jul 2014
Posts: 2,357
Scrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant futureScrappy-doo has a brilliant future
You could also get a dimmable ballast, in case 630 is too much for your space. That's what I got and I'm in a tent with a similar dilemma. If it's too much I can turn it down to 490.
__________________
Damn it stinks in here!

https://www.icmag.com/ic/showthread.php?t=299402
Scrappy-doo is online now Quote


Old 10-11-2018, 05:59 AM #55
Itsmychoice
Member

Itsmychoice's Avatar

Join Date: Apr 2015
Location: Between the creeks
Posts: 363
Itsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really nice
Quote:
Originally Posted by sturgeongeneral View Post
Is that just a single 315 ?
Yeah in the middle of 4K de. Best buds in the room are around that bulb.
Itsmychoice is offline Quote


Old 10-11-2018, 11:11 AM #56
Dirt Bag
Member

Join Date: Jan 2017
Posts: 205
Dirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the rough
Hey MM, Which do you think is preferable: two 315 fixtures or one 630?
Seems to me the better coverage would come from separate fixtures, but would that lessen penetration?
Dirt Bag is offline Quote


Old 10-11-2018, 11:28 AM #57
Dirt Bag
Member

Join Date: Jan 2017
Posts: 205
Dirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the roughDirt Bag is a jewel in the rough
Quote:
Originally Posted by Miraculous Meds View Post
In your situation 2 630s on the ends and a 315 in the middle might do well, but springing for 3 630's would kick ass.


For sg, 3x3 is a bit of stretch in flower for 315s. Maybe if you had a grid of 9 in a square formation, but you will not be happy with outer performance of a 3 x 3 canopy over 1 tray. Ive ran 315s side by side in a 3 x 6 foot print and its not enough light intensity to develop the bud fully. This was tested with long held strains that I know like the back of my hand. Ive also ran 2'x3' footprint with 6 315's, and had to be 24" away or id get severe light intensity stress. Ive also tested 4 630s in a 8x8, and was very happy with the performance of the entire canopy. Got light stress when closer than 24" on those runs too. 30" light distance seemed perfect for that light pattern.
Light stress is one of the primary reasons for our desire to switch. 30" clearance would leave us 30" for plants. That's doable.
Dirt Bag is offline Quote


1 members found this post helpful.
Old 10-13-2018, 02:32 AM #58
Miraculous Meds
Senior Member

Join Date: Sep 2014
Posts: 4,180
Miraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant futureMiraculous Meds has a brilliant future
Quote:
Originally Posted by Dirt Bag View Post
Hey MM, Which do you think is preferable: two 315 fixtures or one 630?
Seems to me the better coverage would come from separate fixtures, but would that lessen penetration?


To me its a canopy footprint decision. If you want to cover more of a 4x4 or a little less, then id go 630 in one hood. If wanting a different footprint, say 2.5 to 3' wide, id go with individual 315s.


You would have more versatility with the 315s, but more equipment, cost, setup... Pretty equal, just which works best for your situation.


As far as reducing penetration, it depends. If you place your 315s close enough in distance between reflectors, you should be able to match penetration. For example, I stuffed 6 315s in a 6x6. And I had to be at least 24" away, like 600s or the 630s, or id get light stress in that tight of a formation. I did a bunch of par meter testing as well. And on 4 630s in a 8x8. Both had to be 24" plus away with grid lighting like that. In fact, I remember a bottom bud on the 8x8 a good 48" away form the bulb in the corner being dense, trichome laden, and dank. Penetration is amazingly well, if the room is lit up completely.
Miraculous Meds is offline Quote


3 members found this post helpful.
Old 10-13-2018, 11:11 PM #59
sturgeongeneral
Senior Member

sturgeongeneral's Avatar

Join Date: Mar 2013
Location: in the cornfields of the midwest
Posts: 2,338
sturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant futuresturgeongeneral has a brilliant future
So I picked up one nanolux 630 with 2 3100k 315s to try over a tray and see how it does. If it works out I'll pick up more. If not ill go back to hps and keep it moving. Hopefully the 630 will work out with the 3x3s. Cheapest I found was planet natural for 298 on nanoluxes and Amazon for the 315s at 59 per. $418 complete.
__________________
(DONE) 600 watt pp wonderberry tahoe gsc gg4xfc

https://www.icmag.com/ic/showthread.php?t=310164

( ACTIVE ) Wanna see my pp??

https://www.icmag.com/ic/showthread.php?t=308818

( DONE) GG4 X Fire Cookies promix and hydro
https://www.icmag.com/ic/showthread.php?t=314637

This where u wanna be when jesus comes back
sturgeongeneral is offline Quote


2 members found this post helpful.
Old 10-14-2018, 12:46 AM #60
Itsmychoice
Member

Itsmychoice's Avatar

Join Date: Apr 2015
Location: Between the creeks
Posts: 363
Itsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really niceItsmychoice is just really nice
They will be badass over a 3x3.
Itsmychoice is offline Quote


3 members found this post helpful.

Post Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT +2. The time now is 08:16 AM.




This site is for educational and entertainment purposes only.
You must be of legal age to view ICmag and participate here.
All postings are the responsibility of their authors.
Powered by: vBulletin Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.