How much is too much light in veg?

AvidSmoker420

AvidSmoker420

Active Member
So been trying to find bulbs and fixtures and ballasts to use for my cmh 400w veg and 1000w hps grow. Since I finally have the funds to start buying my shit I was just double checking on what to buy before I purchase anything But then it dawned on me instead of wasting money on 2 seperate systems why not do a 1000w veg and 1000w hps grow with exactly same fixture and use a mh/hps switchable ballast. My question is 1000w veg too much for 5 plants in a scrog in a 5x3x6 room or are they just gonna love it. I'm going for high yield! And also rep for anyone to point to the best hps and mh bulbs that can go in a switchable ballast. :bigjoint:
 
jesus of Cannabis

jesus of Cannabis

:-)
no light is too much light, just watch the temps and they will dry out faster.
I get my equiptment from HTG Supply on ebay, good prices and free shipping
i have a 600 switchable digital ballast and love it.
 
kinddiesel

kinddiesel

Well-Known Member
more light the better . I strongly suggest . to get a hortilux blue. 7200 k metal halide . this bulb is just like having it out in the real sun a ( major) difference . even when your plants are small from 4 or 5 inches tall placing them under this if your doing every thing correct . I guarantee you they plant will grow an inch a day ! under a t5 will take much longer. the plants don't stretch that much as long as you keep it close with mh . don't buy digital ballasts total waste of money. you can dim the mh bulb you will rune it , and you may rune premature wear out a hps bulb , only brand I strongly suggest because I proved it to my self there the best are hortilux . the mh will cost about 240 dollars ! and a cheap off brand is 30 bucks . a hps is about 80 to 110 . compared to a cheap brad 30 to 60 bucks. I shit you not the difference is incredible .
 
dbkick

dbkick

Well-Known Member
I guess we aren't taking into consideration that photosynthesis slows or even stops at anything over 7000 foot candles.
Outdoors the number is 5500 fc or so but I've been told indoors it can be pushed to 7000.
 
AvidSmoker420

AvidSmoker420

Active Member
dbkick said:
I guess we aren't taking into consideration that photosynthesis slows or even stops at anything over 7000 foot candles.
Outdoors the number is 5500 fc or so but I've been told indoors it can be pushed to 7000.
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don't know what your getting at
 
dbkick

dbkick

Well-Known Member
but I have a suggestion. buy a solis tek matrix and have the option to buy either 400/600/1000 watt lamps.
 
Slipon

Slipon

Well-Known Member
no matter if you chose a 600W or a 1000W I would suggest you to go with a cool hood/tube as they do get hot as hell, a good ventilation on a cool hood or tube will make your grow much more easy as you won't have to fight high temperatures as much with a cool hood on

and I would for sure go for a quality digital ballast, one that is dimmable , that way you can always turn it down a bit in early veg/as seedlings, not that it will hurt em (if your keep your temperatures in order) but its a waste of power to run 1000W over 5 seedlings, alternative if money is short, is to just get a budget HPS and some CFLs and use the CFLs in Veg and add the HPS in flowering
 
Ammastor

Ammastor

Active Member
dbkick said:
I guess we aren't taking into consideration that photosynthesis slows or even stops at anything over 7000 foot candles.
Outdoors the number is 5500 fc or so but I've been told indoors it can be pushed to 7000.
Click to expand...
This is true. Plants can receive to much light and it does slow photosynthesis. It slows the uptake of moisture to the roots as well. If I remember correctly its not lumen count or watts per foot that was taken into account but it was a certain wavelength that causes the plant to slow. But I do not remember if it was high or low on the wavelength chart.

Ill see if I can find the article. I have it stored on my computer somewhere.
 
F

freeskiier

New Member
Ammastor said:
This is true. Plants can receive to much light and it does slow photosynthesis. It slows the uptake of moisture to the roots as well. If I remember correctly its not lumen count or watts per foot that was taken into account but it was a certain wavelength that causes the plant to slow. But I do not remember if it was high or low on the wavelength chart.

Ill see if I can find the article. I have it stored on my computer somewhere.
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Any luck? This question is eating at my soul.
 
M

MrFrostyMan

Member
If you have a 1000 watt light it needs to be about 5 feet away , think I’m crazy but y’all will be making up all these excuses to why your leaves are dropping your whole veg and it’s slow growth because they are trying to hide from the light regardless of temperature
 
M

MrFrostyMan

Member
And it won’t stretch it will grow into the zone it needs and then bush out as long as you are topping at the right time , u don’t start your car in 5th gear ......
 
M

MrFrostyMan

Member
Kushash said:
You are not talking from experience, you are just speculating. Guessing doesn't go well with the members here trust me.
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Guessing what ? I’m guessing your killing your plants with too much light if your 1000 watt is truly a 1000 watt and is closer than 4 feet by end of flower in a 5x5 , plants can only handle so much light
 
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