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)

Bmac1

Well-known member
Veteran
I just pulled the trigger on a 630w double ended kit with 4200 bulb for my 5x5 tent. Cant wait to see how it stacks up to the 600w hps.
 

Jhhnn

Active member
Veteran
Thank you Jhnnn. I called Metal Halide Shop to see if they had this kit with a 3100k bulb but didn't get an answer. Seemed sketchy. Have you purchased from them before?

At first I thought I could go with just the 4200, but the chart shows that the red spectrum is not well represented. Am I right that this may not be great for flowering? (I also don't think this is a Philips bulb, which probably isn't a big deal as long as it's not junk.)

I've never dealt with them & honestly don't remember how I came up with the link.
 

DIRT DIGGLER

Active member
I have a few questions I hope someone can help me with...

If I have a choice of using only ONE type of bulb either 3100k or 4200k..what would be best???

I'm leaning towards the 4200k apparently have a slightly higher CRI.

Also has anyone heard of fusion bright cmh
Dimmable ballasts???

http://www.growlights.ca/growlights/315w-silverstar-cmh-fusion-bright-ballast-system.html

I'm looking at buying 2 maybe 3 fusion bright remote ballasts with silverstar cmh reflectors with Phillips bulbs.

Any help or opinions would be greatly appreciated.
 

Jhhnn

Active member
Veteran
I have a few questions I hope someone can help me with...

If I have a choice of using only ONE type of bulb either 3100k or 4200k..what would be best???

I'm leaning towards the 4200k apparently have a slightly higher CRI.

Also has anyone heard of fusion bright cmh
Dimmable ballasts???

http://www.growlights.ca/growlights/315w-silverstar-cmh-fusion-bright-ballast-system.html

I'm looking at buying 2 maybe 3 fusion bright remote ballasts with silverstar cmh reflectors with Phillips bulbs.

Any help or opinions would be greatly appreciated.

Most CDM growers seem to use the 3100K. I know for sure that they work great.
 

namahs

New member
I Bought a used philips like the one in our pic. Work great for philips cdm-TP 830 bulb

Great price for 150w CMH system, Got used ballast for 20$ inc shipping and 15$ for a new 830 bulb and got a free used 942 bulb

Got my 150w system cheaper then DIY PLL :dance013:

Thanks for answering guys I just tried to connect it all and it failed, the safety fuse went off :(

trowes could you please upload the photo on how to connect the wires with this ballast cuz I looked the whole internet and didn't find it and the seller on ebay doesn't receive msgs at all.
 

Spaventa

...
Veteran
Ive got the Maxibright 315 ballast and Philips Elite Agro lamp. I got it a few weeks ago and and now wish id got it a lot sooner. I was using 600w HPS for decades until now. Heat was always an issue and my 5" fan worked damn hard and made a lot of noise holding 28 C. Now I can hold 25 C and can barely hear a whisper from the ventilation. Its controlled so I don't know how hard it ever drives the fans but I never hear much, all thanks to the CMH. I can also see already yield is not reduced compared to 600 HPS either, may even be better. Quality definitely looks better though.

This isn't really important but I also really hated looking at my plants under HPS - looking for cloudy/amber transition on trichs just wasn't happening. Pictures also look awful under HPS
 

namahs

New member
Thanks for answering guys I just tried to connect it all and it failed, the safety fuse went off :(

trowes could you please upload the photo on how to connect the wires with this ballast cuz I looked the whole internet and didn't find it and the seller on ebay doesn't receive msgs at all.

nvm I got it! if you see the diagram here the bulb connection is at the bottom and above is shown how to connect the wires, its either on the outer sides (one on one and the other on the other side) or on the inner side and in the mid is the grounding wire.
 

Zeez

---------------->
ICMag Donor
Just picked up a Vivosun 315 3100k after a Colormaster failed at 5000 hrs. I cant measure it but eyeballing it, initial impressions are good. $54,
 

p0opstlnksal0t

Active member
Anyone heard about a 1000w ushio de mh bulb
 

Attachments

  • Screenshot_2017-11-22-08-29-03.jpg
    Screenshot_2017-11-22-08-29-03.jpg
    38.7 KB · Views: 31
  • Screenshot_2017-11-22-08-30-38.jpg
    Screenshot_2017-11-22-08-30-38.jpg
    55 KB · Views: 33

Avinash.miles

Caregiver Extraordinaire
Moderator
ICMag Donor
Veteran
i just learned about "quartz metal halides"

ALSO
i just purchased 2x 150w CMH for veg
they cover about a 3x3 -4x4 footprint and draw less than 1 amp on 220
best part about these new CMH - you can daisy chain up to 4 of them off one outlet.... both the 315's and the new (to me) 150s can daisy chained (endomaxx brand)
 

Miraculous Meds

Well-known member
Can cmh bulbs be dimmed without causing significant damage to the bulb? Im looking at the dimlux brand, and like the features that you can adjust with the controller. Im just not sure if its bad to dim cmh or not.
 

Americangrower

Active member
Veteran
OK I'm a complete newbie when it comes to CMH lights. Was wondering if they can run off digital ballast. Like can I split my 600w and run 2 of the 315W cmh slightly under powered?
 

Jhhnn

Active member
Veteran
OK I'm a complete newbie when it comes to CMH lights. Was wondering if they can run off digital ballast. Like can I split my 600w and run 2 of the 315W cmh slightly under powered?

No. 315w lamps require special 100hz square wave ballasts. Other CMH lamps in general are designed for 60hz magnetic ballasts.
 

Americangrower

Active member
Veteran
No. 315w lamps require special 100hz square wave ballasts. Other CMH lamps in general are designed for 60hz magnetic ballasts.

Thanks for the info.. So you are saying no CMH can run off digital ballast and some can run off the old mag ballast? Don't Digi run at 50 to 60 hz? Sorry for the questions just trying to figure out if I can use Digi ballast. Would like to switch over but hate the idea of wasting 4 perfect ballast.
 

Dr. Purpur

Custom Haze crosses
Veteran
Set them aside for back up and get a 630 watt double lamp CMH. run a 3000K red and a 4000 K in each fixture for best PAR.
 
No. 315w lamps require special 100hz square wave ballasts. Other CMH lamps in general are designed for 60hz magnetic ballasts.

I would to add to what ballast would fire a 630 cmh de bulb.

Phantom II digital ballast pb2010.:dance013:

Like to stress also is, you have to make sure the ballast is in 60% dim mode! Yes u can fire it up in 75% and works, but only a for a few weeks to a month on 12/12 cycle, so if 24/0 I would assume less.
 
Top