Just wondering what your expierence with only running the blue spectrum bulbs for veg and flowering.. GOod bad ugly?
Does anyone use Blue bulbs throughout?
- Thread starter PoopyTeaBags
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Puddin'tane
though I never used JUST blue spectrum for flowering, I am a firm believer in mixed spectrum right through to the end.
ballplayer 2
Active member
I have used the Sunmaster Warm Deluxe MH for both veg and flower. I was happy with the performance throughout, solid bulb. Good dense nugs and healthy foliage until flush.
Edit: I just noticed you specified Blue spectrum. The Warm Deluxe is advertised as a Metal Halide with added reds to help with flowering. Worth a shot if you are considering experimenting on a small scale. See if you like its perfromance.
Edit: I just noticed you specified Blue spectrum. The Warm Deluxe is advertised as a Metal Halide with added reds to help with flowering. Worth a shot if you are considering experimenting on a small scale. See if you like its perfromance.
I've used MH for both in some of my grows for years and it's fine. If I had to pick only one I think I'd rather grow with just a MH.
Lack
Member
I put some 6500k cfl's in my flowering room along with the hps. The added blue spectrum helps increase resin production and increases "frostyness". Without a doubt this works, I read about it at sensi's and decided to try it out awhile back. It worked so well I decided to leave the cfl's in permanently. Give it a shot, it works. 
Toohigh hates halides in flowering (says his yields drop by half) but I haven't had that experience. My yields drop by a few grams a light, but the plants stay notably greener, and get notably frostier. The plants in between the HPS and MH tend to be the happiest in the room though!
straintester
Member
I put some 6500k cfl's in my flowering room along with the hps. The added blue spectrum helps increase resin production and increases "frostyness". Without a doubt this works, I read about it at sensi's and decided to try it out awhile back. It worked so well I decided to leave the cfl's in permanently. Give it a shot, it works.
I 'm with these people in that the blue spectrum is good for both veg and flowering.
I also use both spectrums for each. For veg I use mainly blue but some other added spectrums and for flowering I use an hps along with an MH light which adds some UV.
The buds with both are very dense and compact.
If I were to choose one light I would go with MH also even though it does put out 30% less lumens than the hps
Even with using cfl tubes I'd also have half daylight bulbs and half for flowering (grow bulbs)
I also use mixed spectrum l.e.d.s
That blue for veg red/orange for flower is so passe ...lol
Also MH bulbs last much longer than HPS bulbs so there's that.
I think that's the other way around JF. MH 12 months, Hps 18 months. I think is the general rule of thumb. Also, MH will constantly continue to lose lumens till it dies. An hps on the other hand will retain 80% of it's initial lumens for the life of the bulb. This is the "Mean lumens". BC
I agree with yields dropping. I used CMH this grow and yields were not as large as could've been. Also the plants built much more leaf instead of bud. Didn't notice a resin difference though...
Running a mix with HPS is a different story though and i will be doing that next time around.
Day 50- 150w CMH
Day 40
Really ??
GreenShadows
Member
I've used Hortilux's Blue bulbs. Buds were very frosty.
a good grower frind of mine norh of the border said he used MH for flowering also with good results, he said the buds were frostier-stickier.
I'm on my 1st grow and just flipped to 12/12 and the hps runs noticably hotter than the MH, a LOT hotter!
theres a big heat difference.
I'm on my 1st grow and just flipped to 12/12 and the hps runs noticably hotter than the MH, a LOT hotter!
theres a big heat difference.
mostnonymouse
Member
should be the other way around. you comparing watt to watt?
AbbieDoobie
Active member
I only have a 400 MH and I was going to use a conversion bulb for 12/12, but I said fuck it, and decided to just stick with my MH bulb. Anyone else have anything to add to this thread? And can someone confirm which bulb is hotter, HPS or MH?
~Abbie
~Abbie
AbbieDoobie
Active member
I just ordered a 400W Sunmaster Warm Deluxe MH, so I'm gonna go with that for 12/12. Peace.
~Abbie
~Abbie
I swapped out 400w HPS with 400w MH (RDX 660nm from Plusrite) and the bulbs feel cooler on my skin, and I run them just a little closer to the plant. Closer than where the HPS would burn them. Other variables are more air movement and shorter plants.
But my skin is the same and subjectively the red light feels cooler than the orange. Could be me, these lights make my eyes feel funny like LED's do. My brain might just be ignoring the heat out of confusion.
No confirmed testing with an actual measuring instrument though, all hearsay and anecdotal at this end.
But my skin is the same and subjectively the red light feels cooler than the orange. Could be me, these lights make my eyes feel funny like LED's do. My brain might just be ignoring the heat out of confusion.
No confirmed testing with an actual measuring instrument though, all hearsay and anecdotal at this end.
Of all the posts and all the threads and all the forums I've been to and read, the general consensus seems to be, for yield HPS, for quality MH. Combing the two, somewhere in the middle.
In any case, anyone considering MH as a primary flowering light or even as supplemental lighting to their HPS Primary light, would do well to seriously consider the CMH. Technically and legally, it's a MH and roughly twice the cost of a generic MH lamp. But, at four times the life and considerably longer the lumen maintainence, plain economics says CMH is the better choice of the two. Buy the ticket, drink the kool-aid, come to the dark side! You'll never buy another MH!
In any case, anyone considering MH as a primary flowering light or even as supplemental lighting to their HPS Primary light, would do well to seriously consider the CMH. Technically and legally, it's a MH and roughly twice the cost of a generic MH lamp. But, at four times the life and considerably longer the lumen maintainence, plain economics says CMH is the better choice of the two. Buy the ticket, drink the kool-aid, come to the dark side! You'll never buy another MH!
^ Truth.
I have six thousand watts of hps going, and two 400 watt CMHs in the middle of them on a mover.
MIXED SPECTRUM FTW.
I have six thousand watts of hps going, and two 400 watt CMHs in the middle of them on a mover.
MIXED SPECTRUM FTW.
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