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Philips 315w CDM Elite (CMH)
- Thread starter rives
- Start date
Exactly. Internal fusing in a ballast isn't going to protect an upstream fault. A properly designed circuit should have fusing or a breaker sized appropriately for the main feed, and lighter fusing on the circuits fanning out to the various branch circuits. Otherwise, the wire smaller than the incoming feed becomes the fuse...
I ordered 2 of those 40a breakers. I will put them on the main power lines going into the controller.
If the relay & the equip attached are still good then a bad crimp is the only answer.
Terminals, crimps & crimping w/ stranded wire is a deeper subject than most people realize, particularly in high current applications. I dealt with it my whole professional career as a bus & light rail mechanic. I've been to so many vendor classes on the subject that I don't remember them all.
Color coded insulated terminals really demand color coded crimpers, too, either with a "close here" marking or of the ratchet type that won't open until the crimp is tight.
These must be squeezed tight enough for the two sides to meet at the arrows-
https://www.parts-express.com/gb-gs-366-wire-stripper-crimper--360-630
These won't release until the crimp is complete-
https://www.amazon.com/Professional-Ratcheting-70005-Insulated-Terminals/dp/B017JX8W2I
Other crimp shapes simply aren't as effective w/ such terminals. Conventional terminals should not be crimped to solid wire at all.
I ordered a few of these because they're ridiculously cheap-
https://www.ebay.com/itm/hid-electr...sh=item3b0aad9ff9:g:-psAAOSwAJFa34zP#rpdCntId
The vendor has solid feedback so I took a chance. They're the same as what I've been using for 3 years. I haven't tested them yet because I don't have the socket I thought I had.
Good price on sockets-
https://www.replacementlightbulbs.com/lampsocketk577a.html
https://www.ebay.com/itm/hid-electr...sh=item3b0aad9ff9:g:-psAAOSwAJFa34zP#rpdCntId
The vendor has solid feedback so I took a chance. They're the same as what I've been using for 3 years. I haven't tested them yet because I don't have the socket I thought I had.
Good price on sockets-
https://www.replacementlightbulbs.com/lampsocketk577a.html
That's a great price for sure.
Score! All 3 tested good last night...
HorseBadoritiz
Active member
Thanks to your heads up, I picked up 4x. All work, which was surprising due the lousy packing job the vendor did, lol!
They actually seem to be of better quality than the Philips!
Robney
Active member
Hey everyone! I'm thinking of switching from a 400 hps to a 315 cmh and I got a couple questions:
I have a perpetual flower tent, do you think switching spectrums mid flowering will disturb any of the plants? Could it cause hermis in strains that are known to do that?
Do you think I will yield more, less, or the same? I can't really find a consensus on yield comparisons.
I've heard cmh enhances the terp profile, does it change the high as well? Can it completely change the terp profile? I'm smoking on some sour dubb that was done in LED, and the high seems a bit stronger and not as calming than when I ran it in hps, did anyone see anything like that in their switch from hps to cmh?
Thanks everyone!
I have a perpetual flower tent, do you think switching spectrums mid flowering will disturb any of the plants? Could it cause hermis in strains that are known to do that?
Do you think I will yield more, less, or the same? I can't really find a consensus on yield comparisons.
I've heard cmh enhances the terp profile, does it change the high as well? Can it completely change the terp profile? I'm smoking on some sour dubb that was done in LED, and the high seems a bit stronger and not as calming than when I ran it in hps, did anyone see anything like that in their switch from hps to cmh?
Thanks everyone!
just finished a test grow in a 4ftx3.5ft tent using '2' 315's- normally we grow under 4x1000w hps - used same soil/ferts (fox farms) , 5gall buckets etc- other then the lites , same conditions- including same cuttings ...observations
weed def weaker ... quantity the same ... touch over 2oz per plant- the smell is def weaker then the weed grown under hps.... big diff here...
overall not impressed by the 315's... giving it one more try b4 giving these away tooo... last year tried '3' vipar 300's... they sucked ... gave em away
weed def weaker ... quantity the same ... touch over 2oz per plant- the smell is def weaker then the weed grown under hps.... big diff here...
overall not impressed by the 315's... giving it one more try b4 giving these away tooo... last year tried '3' vipar 300's... they sucked ... gave em away
CMH is a better light to grow plants with vs hps. If you can grow quality flowers it wont matter which light you use. I't will be the same.
Swapping to CMH will not cause hermies. If the genetics your using are sensitive to changes it can happen its not caused by the light. Its the genetics being unstable.
I tested 1 de 630 in a 5x5. Quality didn't change but Yields went up and cost to run went down vs 1kw hps.
I swapped my main room to 4kw CMH. It's crushing anything I got from HPS. The health of the grow has a much bigger impact on quality than the light ur using. Lighting is only 1 part. Environment plays a bigger role how good the plants are gonna be at harvest. I will never use HPS again
hammerhead- my observations are almost the total opposite... our yields were very similar to hps.... maybe cmh was slightly better, but real close... but the quality went down, as well as the bouquet... u are growing with a 630 in a 5x5ft room... we have '2' 315's in a 4x3.5 tent, so we should have a bit more intensity.. as said, we r giving it another go....
You normally use 4kw of HPS in a 4'x3.5' tent, replaced it with (2) 315's, and hit the same weight?
rives...NOOOO... my bad.... the 4x1000 are in a bedroom grow-
as an experiment we bought the tent and the lights and grew 4 cuttings in the tent- so we used the same plants, same soil/ferts... only the lites were diff... i gotta re-read before posting sorry
yes... i asked about these bulbs a few times, without any response - r these bulbs any good??? do they suck??? - little to no info on them...
I know allot of commercial growers. They all have HPS rooms. Most of the new rooms there building are CMH rooms. They wouldn't be doing that if HPS gave better results. I wouldn't have done it myself if I didn't get better results. Common sense tells ya its cheaper to run 630w vs 1kw. The spectrum from CMH is much more efficient. Its been about 3 years since I switched. Quality has never been better. If u calculate GPW CMH should be better than HPS. Thats what we get.
Apparently they suck...
