Hey should I run both ballasts with MH or should I use one of each? I have a 600w reflector wing able to use both MH and HPS and a 250w hood that also uses both. So should I run say a 600w MH with a 250w HPS for veg and 600w HPS with 250W MH for flower. Or should I run straight MH for veg n HPS for flower
600w mh with a 250w hps for veg?
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OG1969
Well-Known Member
That one is up in the air my friend , I have read straight halide in an organic grow but like the mix of the spectrums, I was toying with doing this last grow but now I have two tents could try one of each and see what does better. I have been toying with an all halide grow from stuff I have been reading, will have to give it a try, Peace OG.
Fuzzy Duck
Well-Known Member
Its a tough call to be honest, well almost !
HPS supports a large majority of orange & red spectrum light which is said to promote flowering, this is why we all use hps for the flowering stage...
Know modern thought suggest dual spectrum... hence we see a rise in dual spectrum HID/HPS on the market, when ya think about it the plant is still growing whilst in flower... the first few weeks stretch occurs & after bud development... that stills requires some blue spectrum as technacilly speaking that is still growth !
Hence blue light is required or some !
To promote better growth... in flowering.
Now what dual spec HID/HPS go's against is some 4 decades or more of MH/HPS growing... thats old school stuff & pretty much inbreed programmming by the mass over the decades !
This why we see some people recommend 2 red cfl (hardly red more orange) cfl to 1 blue cfl for flowering... this can also be seen on a few journals with HPS & MH halide used in flowering with some prefering CMH (dual spectrum) to promote better plant growth !
At the end of day its not my problem that people are stuck in some 40 to 50 years old growing method... ya either gonna adapt or die !
Ya just got to progress with techinques or lighting... just look at LED over the last 5 to 10 years to see results, if ya don't try ya never know or learn or pass on your results for others to learn from !
HPS supports a large majority of orange & red spectrum light which is said to promote flowering, this is why we all use hps for the flowering stage...
Know modern thought suggest dual spectrum... hence we see a rise in dual spectrum HID/HPS on the market, when ya think about it the plant is still growing whilst in flower... the first few weeks stretch occurs & after bud development... that stills requires some blue spectrum as technacilly speaking that is still growth !
Hence blue light is required or some !
To promote better growth... in flowering.
Now what dual spec HID/HPS go's against is some 4 decades or more of MH/HPS growing... thats old school stuff & pretty much inbreed programmming by the mass over the decades !
This why we see some people recommend 2 red cfl (hardly red more orange) cfl to 1 blue cfl for flowering... this can also be seen on a few journals with HPS & MH halide used in flowering with some prefering CMH (dual spectrum) to promote better plant growth !
At the end of day its not my problem that people are stuck in some 40 to 50 years old growing method... ya either gonna adapt or die !
Ya just got to progress with techinques or lighting... just look at LED over the last 5 to 10 years to see results, if ya don't try ya never know or learn or pass on your results for others to learn from !
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Hosebomber
New Member
Using HPS during the veg cycle will cause elongation of the stem and greater inter node length. It will however increase the growth rate slightly. DO NOT go to a 24/0 lighting cycle with HPS, the Pfr will not change back to Pr and will cause a morphology to occur.