is there such thing as too much light??

[resinraider]

k, so say i used a 6x6 space... obviously i would yeild more with twoo1000s then i would with 1... and obviously more with 3 then 2... so is there a point where theres over kill and becomes wasteful??? like is eight 1000s over a 6x6 gonna do any better then 7 or six??? and if so, what would u want as a max for a 6x6???

 

[tactownryder]

iv been told over and over again that as long as there not to hot the more light there is equals more energy, witch means more growth

 

[resinraider]

iv been told over and over again that as long as there not to hot the more light there is equals more energy, witch means more growth

me too but i would think at sum point it would have to stop... like if i crammed 10 1000s in there is it gonna do better then 8??? and if so, how much better... i would think it gets to a point where ur not gaining what its worth, in other words if ur getting 4 pounds off 6 lights and then 7 would give u 4 pounds and 2ozs, the 7th light its worthless

 

[newb101]

def the more the better i wouldnt go more than 4 in there lol and i would get cooltubes or aircooled hood cause the heat would be the only problem with the lights.

 

[JN811]

def the more the better i wouldnt go more than 4 in there lol and i would get cooltubes or aircooled hood cause the heat would be the only problem with the lights.

lol newb101 your all over this site, 39% activity! Promoting your site is a lot of work huh?? Better not semd a pm to an admin. on accident!

 

[resinraider]

def the more the better i wouldnt go more than 4 in there lol and i would get cooltubes or aircooled hood cause the heat would be the only problem with the lights.

ya u would need cool tubes for sure... this is not sumhing i want to do, im jus curious as to "over kill"

 

[JN811]

yes their can be too much light btw, at least I read somewhere on this site, and i do think 3 1000 watts would be overkill and would be suspicious to the electricity company.

 

[resinraider]

yes their can be too much light btw, at least I read somewhere on this site, and i do think 2 1000 watts would be overkill and would be suspicious to the electricity company.

im not talking about electric companies.. im not talkin about doin this period... i jus mean in theroy... and i dont think 2k in a 6x6 is over kill but im wondering if 3 or 4 would be, thats y im asking... whats the minimum??? 50w per sq inch??? so whats the max???

 

[tactownryder]

yea i think at a point adding more light is pointless,like at 6-7 or more. iv been told to add one light more then u think is enough lol

 

[JN811]

yes, too much light can be bad for the plants!! Look under plant problems their is a thread on it!

 

[resinraider]

yes, too much light can be bad for the plants!! Look under plant problems their is a thread on it!

wikid, thnx... do u know if it meantions a max per sq inch or anything along those lines???

 

[newb101]

lol newb101 your all over this site, 39% activity! Promoting your site is a lot of work huh?? Better not semd a pm to an admin. on accident!

hard.. man let me tell ya lol but its all worth, growing is the most amazing thing ive ever done! i could sit in a grow room or on a grow forum for hours on in!

 

[JN811]

i agree, im a new grower and I'm just loving it! Sorry i dunno about max per sq inch

 

[thelastpirate]

The plants genetics is the final determining factor in yeild.'
True, the more light = the more bud in theory. All we can do is maximize the potential of the genetics with light, environment, and nutes. (Oh and TLC!!! )

Across the forums, the "Holy Grail" and benchmark of yeild seems to be the "gram per watt" rule everyone strives for.....

 

[resinraider]

The plants genetics is the final determining factor in yeild.'
True, the more light = the more bud in theory. All we can do is maximize the potential of the genetics with light, environment, and nutes. (Oh and TLC!!! )

Across the forums, the "Holy Grail" and benchmark of yeild seems to be the "gram per watt" rule everyone strives for.....

well thats what im talkin about... yes u can acheive 1000g with a 1000w in a 6x6, but ur not gonna get 6000g jus cuz u have 6000w in ur 6x6... so whens its not worth adding more lights

 

[JN811]

well thats what im talkin about... yes u can acheive 1000g with a 1000w in a 6x6, but ur not gonna get 6000g jus cuz u have 6000w in ur 6x6... so whens its not worth adding more lights

for me, its all about mother nature. Plants are meant to be grown outdoors, so when recreating that enviorment, you should use the same ammount of light the sun uses. On a HOT day the sun produces around 10,000 lumens per square foot, so I'd say anything over that is overkill.. And you also have to figure, not everyday is that hot, many days are cloudy, or their may be shadows, ect...

 

[resinraider]

for me, its all about mother nature. Plants are meant to be grown outdoors, so when recreating that enviorment, you should use the same ammount of light the sun uses. On a HOT day the sun produces around 10,000 lumens per square foot, so I'd say anything over that is overkill.. And you also have to figure, not everyday is that hot, many days are cloudy, or their may be shadows, ect...

i made another thread about the same theroy kinda... check it and vote its a poll...

https://www.rollitup.org/indoor-growing/270339-light-space-better-poll.html

 

[highpsi]

The light saturation point is dependent on other limiting factors: Nutrient availability, environment, and CO2 levels. Providing you have a good environment (correct temp and humidty) and the proper levels of nutrients, available CO2 is usually the limiting factor. I don't use CO2, but I have good air circulation and a good extraction fan, so I'm pretty certain my CO2 levels are probably around 350ppm (which is approx. the concentration of CO2 in the atmosphere). I hit my light saturation point when my two air cooled 600w HPS's are around 14" from the tops of the plants. How do I know this? The top leaves of the middle plants (plants directly under the light) start to bleach out when the lights get much closer than this. This is fine anyway, as 14" is where the best combination of intensity and coverage is achieved for me.

So long story short, all else being equal, photosynthesis is limited to how much CO2 is present in the atmosphere. With the addition of 1500ppm of CO2 in the atmosphere, the plants can use a lot more light than at 350ppm. So I'd say ballpark figure, go with 50w/sq.ft if you rely on atmospheric CO2, and up to 100w/sq.ft. when additional CO2 is supplied (ie. 1500ppm)