What's new
  • As of today ICMag has his own Discord server. In this Discord server you can chat, talk with eachother, listen to music, share stories and pictures...and much more. Join now and let's grow together! Join ICMag Discord here! More details in this thread here: here.

Philips 315w CDM Elite (CMH)

P

pug1010

Member
Regarding horizontal vs vertical mounting in specially designed reflctors ... I would love to know how the dpapillon 315 stacks up against the gb - besides the more rectangular footprint.

This might be possible soon, as apparently they are shipping a multi-voltage 120-240 volt system running the phillips ballast soon. Prices seem comparable too ... $580 CAD. I've been reading a few grow reports on ozstoners (popular in oz for the 240v ... massively expensive in australia though ... wow) and people seem very happy. The reflector is an amazing piece of kit.

Anyone read of a direct comparison?
 
KingSkillz

KingSkillz

Member
Pretty sure I'm going cheap ballast with the gb hood. I have a 5x7 room. Canopy is more like 4x6. I was thinking 2 cmh 315s. I usually only run 6 plants in my main room. I currently have a 1000hps and 600 hps in there now.
 
KingSkillz

KingSkillz

Member
My herb is on point far as quality. I'm looking to reduce my production costs at the moment. I looked into led, ugh. Can't trust them yet. So I like the lower watts of the cmh.
 
Hammerhead

Hammerhead

Disabled Farmer
ICMag Donor
Veteran
LED lights will eventually have a place. Right now there all still over priced. A good 1KW led can run up to 2.8k$. I'm surprised I have not seen some good sized rooms with all 315's. many are still using a mix. I'm sure there out there just no pics and grow reports. I would def like to see more of them. The next update I do to my flower room will be the last. No hurry on that.
 
timmur

timmur

Well-known member
Veteran
pug1010 said:
Regarding horizontal vs vertical mounting in specially designed reflctors ... I would love to know how the dpapillon 315 stacks up against the gb - besides the more rectangular footprint.

This might be possible soon, as apparently they are shipping a multi-voltage 120-240 volt system running the phillips ballast soon. Prices seem comparable too ... $580 CAD. I've been reading a few grow reports on ozstoners (popular in oz for the 240v ... massively expensive in australia though ... wow) and people seem very happy. The reflector is an amazing piece of kit.

Anyone read of a direct comparison?
Click to expand...

I don't think the GBs are comparable to anything else. They don't provide a foot print in the normal sense. They provide extreme uniformity. If you value that, then they are the only game in town. With that said, it's not the only way to grow. Many people have been lighting the canopy and not the room for a very long time. :)
 
J

Jhhnn

Active member
Veteran
KingSkillz said:
Pretty sure I'm going cheap ballast with the gb hood. I have a 5x7 room. Canopy is more like 4x6. I was thinking 2 cmh 315s. I usually only run 6 plants in my main room. I currently have a 1000hps and 600 hps in there now.
Click to expand...

If you want production similar to your current setup I'd recommend three 315's in that space. Twin 315's over a 4x4 space perform basically as well for me as my previous 1000w system. If you want to grow out to the edges of the space, 4 would work extremely well, I think. ~40w/sq.ft. of CDM gives excellent results.
 
Ez Rider

Ez Rider

Active member
Veteran
Jhhnn said:
If you want production similar to your current setup I'd recommend three 315's in that space. Twin 315's over a 4x4 space perform basically as well for me as my previous 1000w system. If you want to grow out to the edges of the space, 4 would work extremely well, I think. ~40w/sq.ft. of CDM gives excellent results.
Click to expand...

:yeahthats

Still in the midst of my first run with 315's, but I'd say Jhhnn is spot on.
 
E

el6magiko

Member
hello guys something is wrong with my girls and i hope you could help me with your experiences here are photos, if someone could point me into right direction i would be really thankfull
 
Muleskinner

Muleskinner

Active member
Veteran
That Prism ballast looks like the same body as the Greenbeams, probably coming from the same factory. I like to support trustworthy businessmen, but the reality is that we're all buying the same Chinese electronics with slightly different badges on them. Different color boxes, etc.

FWIW, the Greenbeams reflector seems way overpriced to me. I am very satisfied with my Econowing reflector and the CMH bulb. I think it's about 15% the price of GB?

I don't see any reason to use vertical reflectors with CMH bulbs. Horizontal reflectors are the prevailing standard in commercial agriculture, look at the P.L. Light website. All the reflectors keep the bulb within 2 inches of the inside surface of the reflector, and the reflectors are mostly 10 inches long by 9 wide. That means the light has traveled a very short distance when it emerges from the bottom of the reflector.

You don't want to see a cavernous space around the bulb inside the reflector. For years I've been amazed at the huge reflectors used by the various cannabis companies like Hydroarm, Sunlight, etc. They don't make any sense. I've bent my Econowing down till it's about 10 inches across.

I am trying to order 2 PL Light socket & rail kits w/ Zeta reflectors to run w/ the CMH remotes. Right now I believe this is the most efficient fixture available. It's not going to cost more than $150. IMO the CMH bulb is the magic, the ballast and reflector are not as important.
 
rives

rives

Inveterate Tinkerer
Mentor
ICMag Donor
Veteran
Muleskinner said:
Here is the worlds most advanced growlight - take a look at the reflector:

https://www.monstergardens.com/Grow-Lighting/Commercial-Grade-Lighting/PL Lighting NXT2
Click to expand...

Looks like the current iteration of the same PL reflector that has been available for years. I believe that they were developed as high-bay supplemental lighting for greenhouses, with a small envelope that wouldn't block the natural light when it was available. They have a reputation as being great reflectors, but their optimum mounting heights may not work well for small areas.
 
dbkick

dbkick

Member
That light is so far off topic. This isnt a DE thread and unless that light uses a lfsw ballast its nothing new.
 
Ez Rider

Ez Rider

Active member
Veteran
Muleskinner said:
That Prism ballast looks like the same body as the Greenbeams, probably coming from the same factory. I like to support trustworthy businessmen, but the reality is that we're all buying the same Chinese electronics with slightly different badges on them. Different color boxes, etc.

FWIW, the Greenbeams reflector seems way overpriced to me. I am very satisfied with my Econowing reflector and the CMH bulb. I think it's about 15% the price of GB?

I don't see any reason to use vertical reflectors with CMH bulbs. Horizontal reflectors are the prevailing standard in commercial agriculture, look at the P.L. Light website. All the reflectors keep the bulb within 2 inches of the inside surface of the reflector, and the reflectors are mostly 10 inches long by 9 wide. That means the light has traveled a very short distance when it emerges from the bottom of the reflector.

You don't want to see a cavernous space around the bulb inside the reflector. For years I've been amazed at the huge reflectors used by the various cannabis companies like Hydroarm, Sunlight, etc. They don't make any sense. I've bent my Econowing down till it's about 10 inches across.

I am trying to order 2 PL Light socket & rail kits w/ Zeta reflectors to run w/ the CMH remotes. Right now I believe this is the most efficient fixture available. It's not going to cost more than $150. IMO the CMH bulb is the magic, the ballast and reflector are not as important.
Click to expand...

I believe the 315's work better with vertical reflectors because the arc tube is so small, and semi-spherical. In most lamps, the arc tube is similar in size/shape to a pencil. The 315's arc tube is more like a grape. The long, thin arc tube works better with a horizontal, rather than a vert reflector. The small, spherical tube does not. I seriously doubt cycloptics would have bothered patenting their vertical arrangement if it wasn't superior. The greenbeam luminaire is purpose made for the 315's, the rest just look like old/cheap designs with the new bulb. Comparing my vert's to the horizontals at the hydro store, mine seem quite a bit cooler directly under the lamp, and the reflector itself stays noticeably cooler.

FWIW the greenbeam hoods are made in Germany, not sure about the ballast. Probably part of the expense...German workers are very well paid.
 
frostqueen

frostqueen

Active member
timmur said:
I don't think the GBs are comparable to anything else. They don't provide a foot print in the normal sense. They provide extreme uniformity. If you value that, then they are the only game in town. With that said, it's not the only way to grow. Many people have been lighting the canopy and not the room for a very long time. :)
Click to expand...

'The only game in town'...? Timmur! For realz?

I'm going to hold off on believing this until I see a direct test and comparison of the GB vs. the Phantom hood. I question whether the GB reflector is that superior to the Phantom. Both are vertical bulb, both have pebbled interiors, both utilize wall reflectivity... I question at this point how the Phantom's footprint could be that different than the GB's. Just saying'.

I question that there is a quantifiable difference in terms of production and output. I reserve the right to be wrong, of course. The GB is obviously the one to beat; no doubting its quality and performance.

I wish somebody would run some ffing tests comparing these two already! Betatestteam or Maximumyield or somebody needs to get on that.
 
Hammerhead

Hammerhead

Disabled Farmer
ICMag Donor
Veteran
The new Ceramic Science 315w Ballast arrived today. Its the same form factor as the GB Ballast. The other 2 remote ballast Phantom, Welthink are not as wide and a bit longer..
 

Attachments

  • DSCN2892.jpg
    DSCN2892.jpg
    71.3 KB · Views: 18
Ez Rider

Ez Rider

Active member
Veteran
frostqueen said:
'The only game in town'...? Timmur! For realz?

I'm going to hold off on believing this until I see a direct test and comparison of the GB vs. the Phantom hood. I question whether the GB reflector is that superior to the Phantom. Both are vertical bulb, both have pebbled interiors, both utilize wall reflectivity... I question at this point how the Phantom's footprint could be that different than the GB's. Just saying'.

I question that there is a quantifiable difference in terms of production and output. I reserve the right to be wrong, of course. The GB is obviously the one to beat; no doubting its quality and performance.

I wish somebody would run some ffing tests comparing these two already! Betatestteam or Maximumyield or somebody needs to get on that.
Click to expand...

Especially if you're using it air-cooled, there's no way the phantom reflector can measure up. Half of the inside of the reflector is missing for 1.

It's the hemispherical shape of the greenbeams hood, coupled with the hemispherical shape of the arc tube that produces the results IMO. The phantom(air-cooled) is a typical "shoebox" with the ends cut out as far as I can see. Like you, "I reserve the right to be wrong, of course"...Excellent line btw. I'm putting it in my sig:tiphat:
 
You must log in or register to reply here.

Latest posts

Latest posts

Top