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Philips 315w CDM Elite (CMH)

frostqueen

frostqueen

Active member
Jhhnn said:
It's too bad that Philips marketing & information is so screwy. They have a huge family of lower wattage CDM that might well be adaptable to growers' purposes if we could just figure it out. They don't make that easy. They even have some nifty reflectorized CDM-R & CDM-Rm lamps that might be useful-

http://www.lighting.philips.com/mai...rge/mastercolour-cdm/mastercolour-cdm-rm-mini

http://www.lighting.philips.com/mai...discharge/mastercolour-cdm/mastercolour-cdm-r

If I had the money & the years I'd probably play with that but I'm currently very happy with twin 315's in my 4x4 space. MY photography is shitty as always, but this is the current mixed grow at 5 weeks of 12/12-

View Image

Temp control was always marginal w/ a 1000w lamp but this hits the sweet spot.

I could increase yield w/ longer veg but I'm always growing something different so I have to allow for unusual stretch. There's always plenty of great smoke & plenty of variety which is all I really care about.
Click to expand...

Interesting! Based upon the numbers in the second link, these would last about a year before failures began. (@18 hrs/day).

Philips' marketing is some of the worst I've ever seen. It's like an 80 year old senile person who thinks it's still 1975 is making all of their marketing decisions. If they were even vaguely competent they could make a fortune supplying the home hobbyist horticulture industry.

As it is, simply finding one of these bulbs is nearly impossible, let alone finding a price for them. Keep it like a secret: that's some smart marketing right there.

Edit: finally found a price: about $67 each.
 
theLumberjack

theLumberjack

Member
after dialing the environment in. These sun system 315's are just awesome. Especially if I had CA expensive electricity or if I was trying to have an unnoticeable footprint.
 
Last edited:
Hammerhead

Hammerhead

Disabled Farmer
ICMag Donor
Veteran
I'm in the process of converting from Gavita/E-PAP 1ks.. The 630 im using to test with will eventually go into the main flower room to replace 1 of the E-PAP lights. Will start off with a mix of HPS/CMH. The only thing I dont like is the huge amount of Ballast needed. Wish they would start making 600w ballast to help with that.
 
rives

rives

Inveterate Tinkerer
Mentor
ICMag Donor
Veteran
frostqueen said:
Interesting! Based upon the numbers in the second link, these would last about a year before failures began. (@18 hrs/day).

Philips' marketing is some of the worst I've ever seen. It's like an 80 year old senile person who thinks it's still 1975 is making all of their marketing decisions. If they were even vaguely competent they could make a fortune supplying the home hobbyist horticulture industry.

As it is, simply finding one of these bulbs is nearly impossible, let alone finding a price for them. Keep it like a secret: that's some smart marketing right there.

Edit: finally found a price: about $67 each.
Click to expand...

I share your frustration, but at Eur 24.2 billion in total sales and Eur 659 million net profit, I don't think that they are too worried about us home hobbyists. In fact, they are actively working at avoiding us.
 
M

MrGrowboto

Member
Just found this thread and wanted to say that I absolutely love these cmh lights. After much research I decided on the Sun System 315 for my first grow and I absolutley love this thing. I am actually going to be purchasing a second one here soon. Im in my 4th week of flower and am usig ffof soil and dyna-gro fp/protekt nutrients. Keeping it simple for my first run and so far Im happy. Can't wait to see what the up oming weeks produce.
 
Ez Rider

Ez Rider

Active member
Veteran
I am finding that my plants want significantly more Mg under CMH lighting, compared to HPS. Anyone else?
 
M

MrGrowboto

Member
nukklehead said:
whats your enviro (tent?) and how many plants Mr G?
Looks nice!

respect

Nuk
Click to expand...

Thank you sir! I appreciate that. I have 7 plants. 2 white widow, 2 white cookies, 2 purple kush, 1 bagseed. I have it set up in a 4x4 (or 3.5x4.5 to be accurate). It used to be used as a meat cooler by the previous owners of the home... They were big hunters. It works great because its insulated very well.
 
GET MO

GET MO

Registered Med User
Veteran
Jhhnn said:
It's too bad that Philips marketing & information is so screwy. They have a huge family of lower wattage CDM that might well be adaptable to growers' purposes if we could just figure it out. They don't make that easy. They even have some nifty reflectorized CDM-R & CDM-Rm lamps that might be useful-

http://www.lighting.philips.com/mai...rge/mastercolour-cdm/mastercolour-cdm-rm-mini

http://www.lighting.philips.com/mai...discharge/mastercolour-cdm/mastercolour-cdm-r

If I had the money & the years I'd probably play with that but I'm currently very happy with twin 315's in my 4x4 space. MY photography is shitty as always, but this is the current mixed grow at 5 weeks of 12/12-

View Image

Temp control was always marginal w/ a 1000w lamp but this hits the sweet spot.

I could increase yield w/ longer veg but I'm always growing something different so I have to allow for unusual stretch. There's always plenty of great smoke & plenty of variety which is all I really care about.
Click to expand...


looks good man, how much are you pulling on average from the 2 315s, or is this your first run with um?
 
Medium Pimpin'

Medium Pimpin'

Ask Beavis, I Get Nothing Butt Head
Veteran
These lights appear to do me way better than the 600w hps it replaced.
I get better penetration, thicker buds and bigger spears.
I'll know more once I weigh everything, but by eye I'll never go back to hps.
I'm using original phantom ballasts FYI, don't seem too hot to me.
 
theLumberjack

theLumberjack

Member
Medium Pimpin' said:
These lights appear to do me way better than the 600w hps it replaced.
I get better penetration, thicker buds and bigger spears.
I'll know more once I weigh everything, but by eye I'll never go back to hps.
I'm using original phantom ballasts FYI, don't seem too hot to me.
Click to expand...


agreed. my 600's are no longer in use.
 
Coughie

Coughie

Member
Medium Pimpin' said:
These lights appear to do me way better than the 600w hps it replaced.
I get better penetration, thicker buds and bigger spears.
I'll know more once I weigh everything, but by eye I'll never go back to hps.
I'm using original phantom ballasts FYI, don't seem too hot to me.
Click to expand...

Over what size footprint?
I'm weighing 315 cmh vs 600hps for my 4'x4' tent

Just looking for opinions from folks who've already made the swap-out

Thanks
 
theLumberjack

theLumberjack

Member
Coughie said:
Over what size footprint?
I'm weighing 315 cmh vs 600hps for my 4'x4' tent

Just looking for opinions from folks who've already made the swap-out

Thanks
Click to expand...

do you already have the 600? or buying new? only room? what are goals?

the 300 will bring you equal yield. using less heat and electricity.
2 315's will crush the 600 with similar heat. also over how many plants?
 
Avinash.miles

Avinash.miles

Caregiver Extraordinaire
Moderator
ICMag Donor
Veteran
Centrum said:
Flowering time reduced from 65 to 45 days, Say hUH ??

Anyone noticing a reduced flower time with the CMH ?
Click to expand...

krunchbubble said:
People who want to sell shit, say anything!
Click to expand...

:yeahthats
what krunch said
anytime anyone says anything as foolish as " lower flowering time by 30+% if you use our product" their credibility just went out the window

its a shame because sometimes the hogwash of overzealous sales people can turn people AWAY from a GOOD product because the level of bullshit ("hype")is so high around it.
 
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