Phillips Elite Agro 315w T12 CMH in open fixtures - Impressive!!!

TheChemist77 said:
ive been running the boulder lamp co, 315 lec lamp for almost 3 years now,, i love them!!! way better than hps,mh,or both... anyways its time to replace the bulbs,,they came w/ the phillips master elite agro.. but i went on amazon to order new bulbs and ipower, and other brands make the bulb at a lowe5r price,,the phillips is $90.00 and i can get the ipower bulb for $50.00
both show the same lumen output, kelivins, etc... is there a big difference?? should i buy the phillips or one of the cheaper bulbs?? do u think that the phillips bulb will grow plants any different than the cheaper bulbs???


Philips 315w 98v T12 Clear PGZX18 Mastercolor CDM-T Elite Agro HID Light Bulb
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  • HID Bulbs produce high output for their size making them a compact powerful & efficient light source
  • HID Bulbs are used for general lighting, professional lighting fixtures, growing applications
  • HID bulbs put out around 3-5 times greater output (lumens per watt) than traditional halogen bulbs
  • Philips T12 bulb, 315W,
  • Base: PGZX18, Rated Life (hours): 20000, Color Temp: 3100K, Luminous Flux (LM): 33000


iPower 315-Watt 3100K Master Color CDM Ceramics Metal Halide Grow Light Bulb Lamp, Full Spectrum
572 customer reviews
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Size:
Style: CMH Bulb





  • Use a proprietary phosphor coating on the outside of the arc tube which can provide the richest spectrum on the market! Produces more PAR per watt than standard HPS Bulb
  • 3100K color temperature. High 90 CRI. Optimal for flowering while also can be used for Veg as well
  • 37,000 initial lumens, 120 Lm/W. 570 μmol/s. Promotes higher rate of metabolic activity and resin production through the use of UV far-red spectra
  • High 90% lumen maintenance at 8,000 hr./High 85% PPF maintenance at 20,000 hr
  • Great for indoor gardening or supplemental greenhouse lighting

please help,, i need to order new bulbs soon and dont want to have anyproblems or lower mky yields
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stick with Philips. especially if you run an open bulb. why put a Pinto motor in a Porsche?
 
TheChemist77 said:
thanks for the quick response,,, but i wonder why is the phillips bulb better????
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Growers House did a comparison of all the bulbs and showed both of Phillips to be quite higher in PAR.

But not higher in UV.

And I believe they showed all the available ballasts ran the bulb to spec. I can't speak for quality here but there is at least a standard spec they set for these bulbs.
 
captainmorgan said:
Whats with all the new interest in CMH these days, I know 3 people who have recently switched or are trying it out. Just talked to a buddy that bought a single one to try and is completely disappointed. I was looking at it a few years back but went LED instead.
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I really like mine. I am using it for finishing mostly for the last 2 weeks. It has added frost and potency for certain.

But it is not as powerful as my 600 hps and has a small under 3' square footprint in my experience.

But this observation is for a single 315 in an open vertical reflector.

I will continue to use both hps and cmh together.
 
captainmorgan said:
He swapped out a HPS hood for a CMH hood over a single plant in his room and he said the plant bud development was bad. Haven't seen it but it's got me curious now, may have to take a look at the set up.
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interesting. he did use the correct ballast?

i like it because they do frost up nicely and they finish faster under LEC compared to HPS.
 
i grew w hps and mh for 20 years, i cant complain they did there job.. switched to ceramics after i read a review on par levels w different grow lights in high times back in 2013...my gram per watt increased from 1.2 gpw w hps/mh to 1.4 gpw on my first run w ceramics.. i now am getting 1.56 gpw average on every run..ive also added 100 watt go green citizen led's to my 315 watt ceramics and im getting 1.56 gpw using a total of 2 315 watt cmh and 2 100 watt citizens=830 total watts over a 4f6tx6ft flood table..
 
Anyone have any experience with Cycloptics Greenbeams? Or Solistek 315 cmh? About to order 315 cmh.. Deciding between hoods/ballasts/who to order from. I like the phillips 315w agro lamp are there any that compare or go with that one?
 
Crossface Crippler said:
Anyone have any experience with Cycloptics Greenbeams? Or Solistek 315 cmh? About to order 315 cmh.. Deciding between hoods/ballasts/who to order from. I like the phillips 315w agro lamp are there any that compare or go with that one?
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i like the look of the greenbeam,, but its quite expensive,, $600.00 and you can buy a sunsystem or compareable for like $400-450.00
 
a 315 watt cmh is comparable to 450-500 watts hps,, that said i ran 3 315's over a 4x6 table using 930 total watts i yielded 1,425 grams dry weight.. i also did many runs using 2 600 watt hps over the same table never hit more than 1.2 gpw..
so 1 315 is not a 600 watt hps but 3 315's are far better than 2 600 watt hps..
my best runs wer using 3 400 watters before i went to cmh i ran 2 400 watt hps and 1 400 watt mh in the middle,, i still never had better than 1.2 gpw but the quality was way better than hps alone.. the cmh's produce quality and quantity and a single bulb that lasts for years is another big plus,, i surely dont miss changing the bulbs in the cool tube reflectors every6-8 months either..
 
TheChemist77 said:
a 315 watt cmh is comparable to 450-500 watts hps,, that said i ran 3 315's over a 4x6 table using 930 total watts i yielded 1,425 grams dry weight.. i also did many runs using 2 600 watt hps over the same table never hit more than 1.2 gpw..
so 1 315 is not a 600 watt hps but 3 315's are far better than 2 600 watt hps..
my best runs wer using 3 400 watters before i went to cmh i ran 2 400 watt hps and 1 400 watt mh in the middle,, i still never had better than 1.2 gpw but the quality was way better than hps alone.. the cmh's produce quality and quantity and a single bulb that lasts for years is another big plus,, i surely dont miss changing the bulbs in the cool tube reflectors every6-8 months either..
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Thanks ya i was considering 2 of them in a 4x6 ??
 
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