Ceramic Metal Halide (CMH)

[Azeotrope]

Thanks. Just trying to locate them at a reasonable price. I have found them at some crazy $$....... Someone dropped me a possible contact that would make it reasonable if that works out.

 

[Greenheart]

the 830 is a cmh that runs on a 1000 Watt MH ballast and my friend loves his...currently available here

http://lightbulbhut.com/cdm830vo4k-allstart-p-7418.html?osCsid=52b93d2eb758499cc0d24f87ff3c61a4

Anyone else able to confirm what ballast for the 830 cmh?

 

[rrog]

Mag ballasts for MH are the safest bet. That's what I'm considering. Greenheart, are you planning a vert grow?

 

[Greenheart]

Yes it's vertville for me. That would be a 1000W MH magnetic then? I am about to replace a BlueEyeHorti that's been running on a convertable 1000W ballast.

 

[honeyoil]

I can confirm great results and a lower electric bill using a 12/5.5/1/5.5 light schedule. I am on my 3rd run having converted from 24/0.
No other changes, same strains, plants are just as big, if not a little bigger at the end of the veg cycle. 400W Horz CMH.

 

[Azeotrope]

Just a note to all of you interested in the Philips 315w CDM Elite Agro. I spent a good amount of time with 3 different Philips authorized wholesalers today trying to locate an actual "Agro" for less than $392.00. Wholesalers have a cost of over $300.00 on the Agro right now and are required to order in case quantities (12pk). It is going to take some market demand increase to drive the cost down.

I am going to go with the standard 930 (3k) for now and see how it goes........ Might grab a 942 (42k) later and test it for fun.

Edit/Add - LightingSupply.com sells the PGZ18 sockets and it is an easy order.

 

[rives]

Azeo, some time back I got a price quote from CED for the Agro, p/n 415216, for $114 plus freight. Maybe they got off onto the wrong line, but...... stud horse pricing!

 

[Azeotrope]

Boy, that would be nice, but as you will see in the pm I sent, I am hunting.... CED in my area won't (or can't) sell Philips. I called and asked even though I know them as a Sylvania distributor..... Thet politely confirmed.

 

[rrog]

Rives, you're obviously hot on the CMH. I'm wondering about this in veg, although a lot of people I really respect feel there's too much blue = flarfy bud for flower, unless red-enhanced with a HPS lamp also

 

[Illumination]

Rives, you're obviously hot on the CMH. I'm wondering about this in veg, although a lot of people I really respect feel there's too much blue = flarfy bud for flower, unless red-enhanced with a HPS lamp also

CMH flowers awesomely...good solid buds

 

[rives]

Rives, you're obviously hot on the CMH. I'm wondering about this in veg, although a lot of people I really respect feel there's too much blue = flarfy bud for flower, unless red-enhanced with a HPS lamp also

Rrog, I think that the 315w lamps are a different animal than the standard CMH. As you can see in the below SPD charts, there is substantially less blue than in the Retro-White lamps. The Agro version looks really good to me, but I have some 930's to try first...if it turns out that more red will work better, I will supplement that portion of the spectrum with some 660nm leds.


"Standard" CMH Retro-White -

315w 930 -

315w "Agro" -

 

[rrog]

Wow! Now that's interesting! That's quite a difference in the spectrum. Does a 315 (watt?) have enough juice to penetrate canopy? Or is it more suited to a low SCROG?

Thanks very much!

 

[rives]

Wow! Now that's interesting! That's quite a difference in the spectrum. Does a 315 (watt?) have enough juice to penetrate canopy? Or is it more suited to a low SCROG?

Thanks very much!

I don't know yet. I have to get the damn things running!

 

[rrog]

Actually, that 930 looks like the ticket. Appears to have higher red than the Agro, while having competent blue

 

[rives]

I think that the Agro moves the peak out to the 660-670 range, and a bit less blue. They both look like very interesting lamps to me. The Philips ballasts will dim down to 50%, supposedly with virtually no impact on the spectrum. GEL (Global Energy & Lighting) has come up with a new design ballast for them that operates at a much higher frequency, gives a bit more light with an unbelievable lumen maintenance, and a usable life-span approaching LEDs.


2nd from the bottom on this page -
http://gel-usa.com/ceramatek.html

 

[rrog]

Damn Rives! Such great stuff! I'm building a new room in the fall on 2013. I'll be keeping an eye on this. Thank you very much!

 

[rives]

Take a look at the Cycloptics stuff. They are using the Agro lamp with a new reflector design, and are supposed to be swinging over from the Philips ballast to the GEL. The reflectors are open if that works for your room design, and seem to be coming down in price.

 

[rrog]

Great, great stuff. Again, thanks so much. I will stay tuned for any updates you may have.

 

[Azeotrope]

The peaks on the Agro look to be well thought out.

 

[rrog]

What does that red shift from 650 to 670 get us?