Dual spectrum for flowering ?
- Thread starter Mrnone
- Start date
Mrnone
Active Member
Moishe
Active Member
As jondamon said, it's common practice. Growing with both will help give the benefits of each spectrum. Both spectrums provide benefits for the plant. However, HPS/2700ks just give better effects for flowering (i.e: stretching). MH/6500ks would work for flowering as well, as long as the plants have their photoperiod switched over. Like I said, they just hit different points in the spectrum which provide different effects for plant growth. Supplementing HPS with 6500k T5s is a great idea
Mrnone
Active Member
Cheers mate. Like i said i havent run into any problems and plants seem to be happy as Larry (who ever he is)
NorthofEngland
Well-Known Member
Is there any combination of lights that isn't recommended?
LED with CFL's, HPS with LED's, MH with CFL's...???
Of, if it's mostly 6500k, for VEG and 2700k for FLOWER (or the nm equivalent with LED)
are all combo's acceptable ???
LED with CFL's, HPS with LED's, MH with CFL's...???
Of, if it's mostly 6500k, for VEG and 2700k for FLOWER (or the nm equivalent with LED)
are all combo's acceptable ???
Mrnone
Active Member
Moishe
Active Member
As long as it hits areas of the spectrum that plants use, the more light the better... always as far as I'm concerned.
jondamon
Well-Known Member
NorthofEngland
Well-Known Member
What causes bleaching of the leaves?
Lights too close to plants
JohnDee
Well-Known Member
Hi Minone,
I have always mixed hps and mh. My last grow was 1200 watts hps and 400 MH. Worked great. Here's a good article that touches on some of these issues...
http://howtogrowmarijuana.com/marijuana-light-cycle/
JD
I have always mixed hps and mh. My last grow was 1200 watts hps and 400 MH. Worked great. Here's a good article that touches on some of these issues...
http://howtogrowmarijuana.com/marijuana-light-cycle/
JD
NorthofEngland
Well-Known Member
QUOTE "The more light - the better".
QUOTE from NoE - "What causes bleaching of the leaves?"
and LIGHTS TOO DISTANT CAUSES STRETCHING.....
Surely, by extension, there is a scenario where a plant can be given 'TOO MUCH LIGHT'????
QUOTE from NoE - "What causes bleaching of the leaves?"
If 'LIGHTS TOO CLOSE TO PLANTS' causes BLEACHINGLights too close to plants
and LIGHTS TOO DISTANT CAUSES STRETCHING.....
Surely, by extension, there is a scenario where a plant can be given 'TOO MUCH LIGHT'????
NorthofEngland
Well-Known Member
LIGHTS TOO CLOSE CAUSES BLEACHING.....Lights too close to plants
But what EXACTLY is the reason?
Is it the heat generated?
The intensity of the lumens?
Something else....?
ALSO
Apart from BLEACHED LEAVES not looking particularly healthy or nice
WHAT PROBLEMS DOES BLEACHING CAUSE???
Lowered yield?
Reduced potency?
Imminent or Potential Health Problems....?
Moishe
Active Member
Nah dude. It means you need to move ya damn lights
NorthofEngland
Well-Known Member
But the you risk stretching.Nah dude. It means you need to move ya damn lights
So maybe a 600w 12" above the canopy would be a better scenario than a 1000w 24" above?
(Are you even understanding the point 'damn' point I'm trying to explain, 'dude'???).
Moishe
Active Member
You're saying something completely hypothetical, find something bleaching from a 1000w, swap it out with a 600w at the same height and then put a 1000w 24" above the canopy in another identical space..
Also, wattage, and available grow space are more codependent factors than distance from the light and wattage. The more space you have and ability to cool that 12" gap between the light and the canopy, the better. you wouldn't want to waste that extra bit of light penetration on 12" of empty space, but sometimes as a grower, you must compromise. if you don't have the space to use 1000w, then I would agree that you should downsize to 600w, or look into HO fluorescent as a more climate friendly and forgiving light source.
Cheers