Ceramic Metal Halide (CMH)

[rives]

No one said that the Elite CDM's weren't more efficient, just that they aren't the only 3-4k solution that will work.

Nice deflection.

Yes, you said that the 315 was more efficient. You also have said repeatedly that a CDM is a CDM. The literature clearly makes the point that the Elite series is significantly different than prior generations - it lasts longer, has a higher efficacy, uses marginally lower wattage, and the Agro is a tuned horticultural lamp. Yes, other lamps work well for growing - I've got a whole case of T9 930's that work very well.....just not quite as well as the Agro.

Anyone that has spent the money is obviously going to say that the magic 315 is sooo much better....however, I majorly doubt the advantage is actually what they think they're seeing, as much as what they're not. The electrical efficiency and cost efficiency.

I think 315 owners want to make them more different than they actually are. At it's heart a CDM is a CDM... Allstarts work on magnetics, for sure. New ones are engineered to handle high frequency electronics; don't think there's anything TOO amazing there. Or is there? The very nature of a CDM is high pressure, they're all high pressure. Anyway, they aren't that special to me, I see them for what they are....and sure, I'd run one...but I would kid myself about what it is. It's a ceramic metal halide, designed to run on electronics to save $, etc.

> If it isn't a CDM, they should call it something else.

Either way....all of them are CDM's at their root. I'm kinda getting tired of the 'elite'(marketing name) being mystified as some magical wand designed by the elven kings.

CDM, CMH...whatever you want to call it...same salts more or less, same arcs more or less. Don't really care what ballast it is...yes, electronic(designed specific ones) are more efficient but have shorter lives, and besides, I have no plan on running 50 of them. Electronic ballasts are more efficient and extend bulb life...again, no mystery there.

Again, has nothing to do with the basic premise behind the arc that makes a CDM a CDM.

 

[Drek]

Elite CDM is definitely an improvement/step up, but it's still CDM at it's core. You'd have to be pretty silly to convince yourself otherwise, I think!

Those quotes that your using, are from a conversation with someone else, not you.

 

[rives]

Elite CDM is definitely an improvement/step up, but it's still CDM at it's core. You'd have to be pretty silly to convince yourself otherwise, I think!

I don't think that anyone has claimed any differently. Your premise all along has been that "a CDM is a CDM", where we have been saying that the T-series is a substantial improvement over prior generations. And yes, this extends beyond the efficiency improvements.

Those quotes that your using, are from a conversation with someone else, not you.

??? I'm not sure how it is relevant who your statements were made to, but the first two quotes were actually replies to me.

 

[Avinash.miles]

This one is for Drek....

Elite CDM is a step up from reg. CDM
that is all.

 

[Drek]

"Elite" CDM has higher efficacy, at 120lpw. This is probably(possibly) due to higher pressures in the arc, which itself is possible because of the tight output on the ballast. Higher pressures/tighter control. It is brighter watt for watt, no doubt; nice lamp. But still burning the same recipe, give or take, in the same Arc, more or less...and only slightly brighter than the Retro, but lasts longer.

Definitely Elite CDM!

 

[psyphish]

All I know is my 315w agro kills 400w retro whites. Definitely sticking to 315w bulbs till they release a better one, not going to happen anytime soon I think.

 

[Drek]

Yes, Agro CDM is a nice lamp. I had Agro version of HPS in Philips Son Agro. However, my I liked Retro better even though the 430w HPS Agro(2100k) version should have been way better in flowering, 56,000 lumens in Agro tailored HPS PAR. Still liked using the Retro more.

If I had $700 to lay down for kicks, I might, but Retro worked good enuff, at least for now. Different CDM Elites have different efficacy ratings, lumen/par outputs, etc...

Agro version is slightly less in initial lumens at 33,000 vs 34,800 of Retro, however, ppf/w is higher on Agro CDM. Retro is still a fine lamp, as the results have proven. Would be nice to know ppf/w on Retro...I'm guessing at least 1.6.

 

[LargePrime]

So we know the 315W have a special ballasts.
In the docs Philips notes the Lamp (Bulb) has ANSI code C182. the 210 ANSI Codeis C183.

Does anyone know what C182 means? I have been over the ANSI docs and can find go reference to what this means at all.

I think ANSI C78 has the lamp Specs, and C82 the ballasts. But from the specs I can find, I can find neither of these.

Anyone have a better hookup?

 

[Drek]

ANSI codes, I believe, refer mostly to protective devices needed for a specific device. So the code would probably be referring to something having to do with protection.

eVision outputs a low frequency square wave(approx 110hz @ the lamp (but not over 200hz) - nearly double the input frequency) and tightly regulates the wattage; is constantly adjusting(self adjusting/closed loop). This results in high color rendering, better lamp life and light consistency/lack of flicker. Comes with 0-10vdc control for building automation. The ballast is designed for commercial, energy saving building solutions, with automation.

They also make a flowering version of the 315w lamp; Agro.

Dynavision is also a nice ballast.

 

[Ka-rel]

CDM OSRAM 250w , CDM EYE IWASAKI 360w

CDM OSRAM 250w , CDM EYE IWASAKI 360w

Hey gardeners,
It has long been theoretically monitoring the issue of CDM lamps and took me these products (found in the heart of Europe):

First http://www.osram.com/osram_com/prod...i-tt-super-4y/index.jsp?productId=ZMP_1092990
http://www.osram.com/osram_com/prod...c-outdoor-pto/index.jsp?productId=ZMP_1068860
It's just a pity the max wattage is 250 watts but achieves efficiency: 125 lm / w 3000K ))

second http://www.eye.co.jp/sources/ceramic/pdf/p17.pdf
https://www.nbb.cz/cm360f-w-sh-bud-eye-cera-arc-d4048
It produced in laminated variant (milk) glass, while having 4.5% lower luminosity but significantly better penetrate (my opinion arguing about this with my friends for years ...) 112lm / w 4200K

I'm going to experiment and I am concerned about these lamps.

Sorry for the English is'm here for active participation google translator

Good light and beautiful women
Karel

 

[the gnome]

ok...figure it's time to take a break from cmh/cdm class and show a few pics of what I'm getting from my 860CDMs


Gage Green Genetics
sun maiden
@24days

mosca
old time IBG
@24days

 

[Jhhnn]

^^^

I think the girls like it, Gnome

Both of those are quite frosty for 24 days.

 

[the gnome]

both are very frosty strains,
believe it or not they had about 80% as much of frost @15 days
wish I took pics!
they look at least 7-10 days ahead of schedule imo
ive been running those strain for quite a while.
something happened and I screwed up on the 12/12switch,
when i got it back on track 2 wks later my plants made flowers faster than Ive ever seen in my 4rys of indoor grows,

I need to try and repeat it again and if i get the same results then post that there may be a way to speed up bloom.
what I'm waiting to see is if they'll ripen at a faster pace or not.
either way I'm stoked at what Ive been seeing

here's my strawdog
@27days

white fire alien
27days

 

[Drek]

Those plants look great Gnome. Nice and healthy. Can't wait to see how they turn out!

 

[CMH]

315W CMH lighting at Indoor Garden Expo in Boston, MA from Oct. 18th to 19th

315W CMH lighting at Indoor Garden Expo in Boston, MA from Oct. 18th to 19th

Will any one here go to Indoor Garden Expo in Boston, MA from Oct. 18th to 19th, 2014? Our company will show CMH lighting and other lighting products. If you come, please stop by our booth (1110) and learn something new.

 

[nr nodes]

Will any one here go to Indoor Garden Expo in Boston, MA from Oct. 18th to 19th, 2014? Our company will show CMH lighting and other lighting products. If you come, please stop by our booth (1110) and learn something new.

Welthink hitting the shows now eh? Will you come back here afterward and fill us in?

Actually a new thread for your company's products would be much better, since certain folks have already 'proven' everything there is to know in this one.

 

[indianajones]

Will any one here go to Indoor Garden Expo in Boston, MA from Oct. 18th to 19th, 2014? Our company will show CMH lighting and other lighting products. If you come, please stop by our booth (1110) and learn something new.

develop a double ended CMH then we can be friends

 

[big-ultimate]

hello

nobody talks about this lamp https://www.growshoponline.nu/fr/vm...double-dpapillon-630w-greenpower-incl.-lampe/

 

[big-ultimate]

or

http://www.hydrohobby.co.uk/630-watt-dimlux-expert-dual-cmh-lighting-system.html

 

[rives]

It's the same lamp (315), but there are two of them installed in the fixtures.