What's new
  • ICMag with help from Landrace Warden and The Vault is running a NEW contest in November! You can check it here. Prizes are seeds & forum premium access. Come join in!

Ceramic Metal Halide (CMH)

Hottish

Active member
Europe @ a decent price

Europe @ a decent price

Has anyone found the CDM ELITE 315W/T12/AGRO Lamps and the Philips advance ballasts in Europe @ a decent price

:tiphat:

 

Millsie

New member
By the way, hellah good thread you guys have got going here have loved reading through all the knowledge, information(and disinformation) plus all the keyboard warrior battles too :D

In my specific view of things, the 315w CMH variants will do OK in standard horizontal growing however where the bulb will truly shine would be in specifically designed vertical circular grow setups with plant matter around 1'-1'6"ish away from the bulb.

i.e.
-Where the bulb can be dropped into the direct middle of the plants
--The next level of this would to have the bulb on a vertical light rail (continuously moving), i.e. bombarding the plant with the bulbs delicious PAR from different angles and intensities
-Where the bulb doesn't have to waste energy reflecting off a reflector (Plant is 360 degrees around the bulb)
-Where the bulb doesn't have to penetrate through ridiculous amounts of foliage (i.e. plant tied to a screen)

If anyone cares I could draw up a grow box that would truly take advantage of the bulb, so just let me know :)
 

Millsie

New member
I think you're missing the point of SCROGs. Everything you want the light to hit is *above* the screen. Most SCROGgers lollipop everything below the screen so they don't care if the light penetrates below the canopy.

There is more than one type of SCROG technique. That's a standard horizontal SCROG, great for 600w/1000w however for our itty bitty 315w bulb not so ideal.

What I'm talking about is a vertical SCROG.

In a vertical SCROG ideally you wouldn't be cutting any foliage off the plant because light from your bulb will be hitting every singe leaf and budding site, there would be no popcorn buds. This is because your bulb would be in the middle of your plant allowing the full utilization of the plants growing capability with minimal lumen/lux/par/umols loss from the bulb.

However with this technique you would need to fim/top/lst/blah/blah to get around 4-8 branches off one plant and all the while tying each branch to the screen so all growth is roughly uniform (like a traditional SCROG)
 

Stoogots

Member
Veteran
There is more than one type of SCROG technique. That's a standard horizontal SCROG, great for 600w/1000w however for our itty bitty 315w bulb not so ideal.

I don't think so....SCROG is used to maximize the yeld with low wattage... What's the meaning of a SCROG with 600/1000W that have huge penetration? Don't confuse growing with trellys with real scrog...:2cents:

What I'm talking about is a vertical SCROG.

In a vertical SCROG ideally you wouldn't be cutting any foliage off the plant because light from your bulb will be hitting every singe leaf and budding site, there would be no popcorn buds. This is because your bulb would be in the middle of your plant allowing the full utilization of the plants growing capability with minimal lumen/lux/par/umols loss from the bulb.

However with this technique you would need to fim/top/lst/blah/blah to get around 4-8 branches off one plant and all the while tying each branch to the screen so all growth is roughly uniform (like a traditional SCROG)

This not true....Check The WoW thread by Marlo or his last run Marlo vs relentless.

:tiphat:
 

Avinash.miles

Caregiver Extraordinaire
Moderator
ICMag Donor
Veteran
yhea these CMH bulbs could be GREAT for vert growing, especially since the 315w bulbs create SPHERES of lite instead of DONUTS, you can grow directly beneath a vertically hanging 315w CMH whereas that would be a dark spot in a vertical HPS or MH garden.
the 860s make donuts still tho.
 

Scrappy-doo

Well-known member
Veteran
Can someone help me out?

Looking for suggestions. I'm thinking of picking up a few of these to replace my hps lights or at the very least to take some of the load. I'm sick and tired of dealing with all the heat even with an air cooled 1k it's just too damn hot.

So what are the best of the best currently, the 315's? Was looking at getting those cycloptics and taking advantage of the 10% discount till the end of the month, so those would be about $380 each.

I see they also offer a choice of bulbs, either the philips 942 or the green power. Which is more ideal in your opinion?

If there is a better option than the cycloptics I'm all ears for suggestions. I would probably pick up 3 of them at that price, but if there is another option for equal quality with a better deal, I'd rather pick up 4 or 5 if possible.
 

rives

Inveterate Tinkerer
Mentor
ICMag Donor
Veteran
Scrappy, I think that if you can set up your grow according to Cycloptic's recommendations, you would have a tough time beating their gear. They treat the walls as part of the system, so you would need to familiarize yourself with what they spec out if you haven't already. Tenthirty has used their gear for a while now, so he might be a good one to hit up.

The 942 would be better for vegging, whereas I think that the Green Power lamp is the 930 Agro re-named, and would be more for flowering.
 

tenthirty

Member
I would recommend the cycloptics system run at 40 w sq ft.
I would plan my grow for 2 or 4 units. They really benefit from light overlap.

Without getting too geekie.

After a year of running the cycloptics systems with Elite Agro bulbs.
The mix of the spectrum is damn good!!
The mix of colors as well as far red , makes the plant flower very nicely in a reasonably short amount of time.
The working length (penetration) on the plant is about 1.5 -2.0 feet tall. The buds tend to be relatively consistent down the stem.
Even better than the 3000k CXA3070's, (that I'm running now)
I'm about to add a blast of 730nm at lights out to try to get a response closer to the Agro bulbes and hopefully get the higher yield of the leds with the faster finish of the agro.
The Agro makes the plants finish quickly, and as you can see from Rives pics, the quality is great, better than my friends running gavita's same strains.


Running a perpetual 2 cycloptics systems, 5-6 day veg. Never got less than 1.22 gw.
 

Scrappy-doo

Well-known member
Veteran
Cycloptics has a 10% discount right now? Is it advertised on their website?


The owner was on the adam dunn show and he is offering a discount to listeners. I forget what the discount code is but he says it on there. He's the first guest, comes on at 20 or 30 min into the show.



https://www.youtube.com/watch?v=BUuBL2JKHuY

He said it's till the end of the month.

Never even knew about the advances in cmh's till I listened to this. Was gonna get a gavita till I heard about these.
 

Scrappy-doo

Well-known member
Veteran
Thanks for the info rives and tenthirty, gonna go for 3 of the green power lamp setups to replace my 1k hps, and then I still have a 600 hps I'll run in my 4x4 tent. Not sure on configuration yet, guess I'll have to do some reading on their site.
 
D

Drek

Had a listen to the show. Just want to give anyone a heads up that there's a promotion code that Flip gives during the interview, that entitles you to 10% off of a CDM Elite Agro setup until the end of this month(oct)...which brings it down to $380. Pretty sweet deal...

http://adamdunnshow.com/podcast/
 

Scrappy-doo

Well-known member
Veteran
So I just got of the phone with Flip and put in an order for 3 setups. They're waiting for a shipment to come in so it's not gonna get shipped out till next week. With shipping they're about $400 a pop.

I ended up deciding to go with the 942 bulbs after our conversation and learning that some people are using those bulbs for their entire run. Adam actually is using that bulb and also another person he was telling me about that has a degree (I think that's what he said) in horticulture, and they are choosing the 942's over the agro bulbs. I did pick up one Agro bulb also so I can experiment and see what difference there is between the bulbs.

Excited though to get started with them.
 
D

Drek

;) Great to hear and congrats on the new setup! It's nice to save a few bucks on these units as well before the closing date.

Funny about Flip's comments, on what temp some are choosing to use...
 
Top