Philips 315w CDM Elite (CMH)

[rives]

Good to see you around, tenthirty!

I agree, Glooms problem isn't related to the light. I've had plants bumping up against the glass on the reflector, and the only ill effect was screwing up the light distribution.

 

[Lowman]

So, the mogul 315 is the same as the PGZ lamp? In every way except the base?[FONT=Arial, Helvetica, sans-serif][/FONT]

 

[Jhhnn]

So, the mogul 315 is the same as the PGZ lamp? In every way except the base?

I seem to remember that there are slight differences in UV output between the mogul 942 & the PGZ 942. Both are well below safe limits. That's apparently a function of slightly different glass in the outer envelopes. It's more about fading of materials, not a factor for our purposes.

I think there may be differences in longevity rating but wouldn't pretend to know why.

Compare the mogul lamp here-

http://advancedtechlighting.com/cdmmw.htm

to the PGZ 942 here-

http://www.lighting.philips.com/pwc...literature/downloads/elite_design_guidev7.pdf

Both are clearly quite suitable for our purposes. The mogul base is easier to integrate w/ existing luminaires.

 

[Avenger]

So, the mogul 315 is the same as the PGZ lamp? In every way except the base?[FONT=Arial, Helvetica, sans-serif][/FONT]

I would say no, the pgz lamp is superior in every way, including the base.

cheers,

 

[Unclecrash]

Is Advanced the guy with health issue's ? I guess best to call a head to make sure he is able to ship. Anyone know whats comes in the kit for $200 ? Confused because down the page there is a tab to buy @195

 

[Gloomshade]

1.2 to 1.4 EC is high in DWC. My bet is pathogens in the root area. I tried to run DWC for over a year and could not stop the root disease. E&F in rockwool is a lot easier.

6" to a foot should be fine.

On my best runs I would pull 18+ oz's out of a 3x3. I would say my average was about 15-16.

Good luck.

You know...I hadn't really considered root disease at all because I run a water chiller and just...didn't think it likely. Also running H&G Roots Excel (before i cut out all additives chasing problems) stains the roots brown making it hard to see any problems that might crop up.

As soon as I read your post I googled a little more to familiarise myself with recognizing root rot...

Went into my flower tent, lifted the plant closest to harvest up to inspect the roots, they were pretty brown which I've come to expect but a gentle touch of the root mass was bringing away tonnes of roots on my fingers...just falling away with the lightest of touch...

So...root disease is looking like the likely contender for my problems... Almost 100%.

Now... to try to eradicate it. Being a perpetual system I've got to try to get on top of it whilst still using the system...

2 days ago a new plant went into flower and the roots were still white and healthy, the first month of flower is the same rez as the veg tent, so its definately an issue in both systems because the problems really kick in about week 3-4 flower.

I'm thinking I will drain the entire system, get the garden hose out lift each plant one at a time, spray the root mass trying to remove everything unhealthy run a butt tonne of fresh water through the system, scrubbing each pot...Refill with RO, 1.0 EC nutes and either Zone or hydrogen peroxide 50%.

Massive thanks to tenthirty... I wish I had have asked for help a month ago...

 

[xekki]

Is Advanced the guy with health issue's ? I guess best to call a head to make sure he is able to ship. Anyone know whats comes in the kit for $200 ? Confused because down the page there is a tab to buy @195

The kit for 200$ is bulb and ballast at a discounted rate
You'll still need power and lamp cords/socket/reflector
The 195$ option is just the ballast

 

[Gloomshade]

Might drop the lights back down to a less excessive height too... I usually try to keep it around 45-50cm... But set it once a fortnight and don't bother too much when they grow up towards it.

 

[McNerdius]

derpin de lay

derpin de lay

Is Advanced the guy with health issue's ? I guess best to call a head to make sure he is able to ship. Anyone know whats comes in the kit for $200 ? Confused because down the page there is a tab to buy @195

Yeah, that's the guy. Dunno if you already called to inquire, but here's an update email sent regarding my order placed on 5/30 -

we are shipping on time.... i have brought in Help to ensure we dont get behind again. 06/03/2015

Tracking says it'll be here Tuesday, the 9th. Given the value, i'm calling that fast as fuck.

 

[HorseBadoritiz]

I would say no, the pgz lamp is superior in every way, including the base.

cheers,

Why do you think that, @Avenger? Just curious!

 

[Scrappy-doo]

Has anyone experienced any burning of leaves from 315's? I've been chasing my tail on a flower tent full of brown for a while now... I dont think any of the plants have ever been closer than a foot from the light...but at times maybe around a foot away.

I've spent heaps of time googling deficiencies and proper EC's and stuff for my DWC, and bounced around between thinking I have mag deficiency, or P, or K...nothing I've added or taken away nutrient wise has had any noticable effect... In an effort to try to keep it simple I've cut my nutrient line back to H&G A+B, and bloom calmag(RO water). EC around 1.2-1.4.

My last plant was a 3x3 scrog that only yielded under 3 ounces.

Theoretically...with 1 of these lights in a 3x3 I should be able to aim for 10 ounces, or even 12 maybe...

Just wish I could keep the bastards green.... Raised my lights up to 2foot all around and taped some string to them to keep track of when the canopy grows enough to want to raise the lights anyway... I don't know if I'm convinced that my problem is light burn...but geez it would really solve my problems if thats what it turned out to be.

I've found that my plants need to be hardened off to these lights coming in to the flower room from vegging with only cfl's. If I don't then they get all kinds of burned up and really don't recover. If that were your problem though it should be pretty apparent within a couple days of them being under them.

 

[Unclecrash]

Yeah, that's the guy. Dunno if you already called to inquire, but here's an update email sent regarding my order placed on 5/30 -



Tracking says it'll be here Tuesday, the 9th. Given the value, i'm calling that fast as fuck.

Guess I dont need to call if it shows up, keep us posted . I wont be ready for about a month.

 

[Unclecrash]

The kit for 200$ is bulb and ballast at a discounted rate
You'll still need power and lamp cords/socket/reflector
The 195$ option is just the ballast

Thanks man, I have a cord and one of those cheap reflectors. Will need to buy the converter on ebay.

 

[h1ghscore]

what other reflectors are pairing well with the light kit from advanced? rives said the bell 600 centered the 315 up nicely. any other good experiences?

 

[Jhhnn]

what other reflectors are pairing well with the light kit from advanced? rives said the bell 600 centered the 315 up nicely. any other good experiences?

Rives put his together with pgz lamps before the mogul lamp was available. The ATL kit includes a mogul lamp, meaning it will screw right in to most reflectors & put the light emitter in the same place it would be for a standard MH lamp.

I suspect that the mogul lamp will not fit in a few low profile reflectors built for the skinnier HPS lamps.

I'll find out how well two pgz 315's work in my super sun 2 reflector in a couple of months. No way I could stuff two ED37 mogul lamps in there. They'll replace the dual arc 1000w currently in use. I'll be very happy if they grow nearly as well because they should reduce my heat problems quite a bit. Should save a little on the electric bill, too.

 

[h1ghscore]

@jhhnn thanks for the clarification, good luck with your experimenting!

 

[luxcultivars]

I've found that my plants need to be hardened off to these lights coming in to the flower room from vegging with only cfl's. If I don't then they get all kinds of burned up and really don't recover. If that were your problem though it should be pretty apparent within a couple days of them being under them.

Hey there, Scrappy. What distance from bulb to leaves are you seeing this?

 

[McNerdius]

Oh, the anticipation...

6/09/2015 - Tuesday 5:29 am On FedEx vehicle for delivery

So, seven business days total. Tom / ATL / ATS

---

Now, does anyone have any thoughts or data on optimal bulb operating temperatures ? Details are rambly and off-topic but my gut is telling me that if 'too cool' is a thing, the chilly air my (isolated) intake provides plus this 6" booster fan i bought might be overkill.

Off to poke around in the rest of the lighting forum for relevant info...

 

[Avenger]

see page 12 of the oem guide from Philips:
http://www.lighting.philips.com/pwc...literature/downloads/elite_design_guidev7.pdf

sorry that pic is for the pgz, not the mogul base lamp

see this pdf for the mogul base lamp.
http://download.p4c.philips.com/l4bt/3/385236/mastercolor_cdm_elite_mw_mogul_b_385236_ffs_aen.pdf

it says
Cap-Base Temperature 210 C

Bulb Temperature 400 (max) C


it does not suggest a minimum temperature.

 

[Jhhnn]

Oh, the anticipation...

6/09/2015 - Tuesday 5:29 am On FedEx vehicle for delivery

So, seven business days total. Tom / ATL / ATS

---

Now, does anyone have any thoughts or data on optimal bulb operating temperatures ? Details are rambly and off-topic but my gut is telling me that if 'too cool' is a thing, the chilly air my (isolated) intake provides plus this 6" booster fan i bought might be overkill.

Off to poke around in the rest of the lighting forum for relevant info...

see page 12 of the oem guide from Philips:
http://www.lighting.philips.com/pwc...literature/downloads/elite_design_guidev7.pdf

sorry that pic is for the pgz, not the mogul base lamp

see this pdf for the mogul base lamp.
http://download.p4c.philips.com/l4bt/3/385236/mastercolor_cdm_elite_mw_mogul_b_385236_ffs_aen.pdf

it says
Cap-Base Temperature 210 C

Bulb Temperature 400 (max) C


it does not suggest a minimum temperature.

I think Avenger has it right. Only the gavita DE lamps are gas filled, so they're more sensitive to heat loss from the element through conduction to the envelope. CDM lamps are vacuum sealed, so the only way heat escapes the element is through radiation.

Edit- see page 12, sec 3.3.1-

CDM lamps have no special requirements regarding ambient temperature. In general, HID lamps are
not sensitive to ambient temperatures.

http://www.lighting.philips.com/pwc...literature/downloads/elite_design_guidev7.pdf