How Much Light Can Plants Handle? PICS

why would i lie, i have about 8ft max height
iam hoping they wont grow straight up if i feed them enough light from the sides

texastim420 said:

i know all the cons of using crap foil
Mylar will replace foil
its high noon and my plant tops temps are peaking at 83 before a/c cycles back on
light at 400w and about 13in's away from plant tops
2 days ago they where smashed by glass(about 20lbs,pin holding glass up broke)
View attachment 1660016View attachment 1660017View attachment 1660018View attachment 1660019View attachment 1660020View attachment 1660021View attachment 1660022View attachment 1660023

Click to expand...

I do not see 8 foot of space here from the base of the plant to the glass, unless i cannot see the 6foot underneath? I am confused here!

if i zoom out to far the houses custom wood work will show
you see what i want you to see

Ill just have to take your word for it, just out of intrest why grow in cups, with that space you could have nice pig pots or a hydro system?

i wanted to study how the plants grow. so i can make up my mind how i want to grow in the future.cups are just what they ended up in



i built this room to about 8x8 ft and is where the will flower once they are big enough

Is that aircon unit not drying out all the air in your cab?

cabinet, tent, cupboard, shed etc.

So you can run continuous veg and flower cycles, move them into soil or a proper hydro and flower them whilst starting a new batch of seedlings or grow them a few more weeks then move to flower, what you got lightwise in the flower room? four 1000watt lights is my guess dude!lol! Sorry couldn't resist that. Peace

well i will just call it my living room and my humidity stays above 70%
lowering it for flower stage is going to be the hard part

i haven't got any other lights, that's what this grow is for.so i can decide how to spend my money in the future. i been reading on U.V. lights to add lately to my grow this bulb
http://www.lightingsupply.com/products/product_detail.aspx?product=1343427fa4804e41b9bd353f08196e39&category=99172fa60656481fb998bfaa0944213c

UVB is overated, can produce more trics but the light degrades plastics and other things over a long period of time and not good for our skin. It dose however promote trichrome growth as the plant trys to protect itself from the harmfull uvb. Why don't you use the 600w to flower and get some flourescents for the veg. I use the 4 bulb 2 foot t5 lightwave unit, for 88 watts of light this sure can veg some mean plants. T5 flourescents are on a par with hps/mh in a short grow low grow or scrog. Good luck dude, i personally don't like uvb, my envirolite kicks out enough and it turns white plastic to dull brown colour over a year or two so i have enough uvb. Research uvb, never thought it was used for light intensity or penetration but more to encorage the plant to grow more trichromes to protect itself from the harmfull uvb rays. Peace

thanks for the fun facts,
what i should have typed is iam thinking about u.v. lights and want to switch my hps to a cdm

I see some ansolute pros adding in a uvb light here and there but not very often, like i said they don't do it for yeild. Lizards need these in vivariums because the light in hot countries has a higher proportion of uvb light for couple of scientific reasons. This light is damaging to the skin though just like light in a hot country. Aren't sunbed lights uvb as well.

What is a 'cdm'??

lol i dont know it should say cmh

Well what is cmh dude?

Ceramic Discharge Metal Halide (CDM) bulb

bulb Benefits:
There are many benefits to these lamps. The main reason for even considering these lamps is the fantastic spectrum of light they produce.Other benefits include they "throw" less heat, they have very little color shift (less than 200K over their life time), your plants will have less stretch (tighter internodes).
check link
https://www.icmag.com/ic/showthread.php?t=72215

I use envirolites (just gone bust!!!! ARGH) for the light spectrum, kick ass in spectrum on most bulbs, a wider spectrum covering the red and blue is great for veg and flower, i always find watt for watt that blue light spectrum penetrates better than the red so i always add a blue envirolite to my red in flowering, in veg i am blue all the way at the moment. Bulbs are so cheap at the moment i would not worry about their usable life and shift so much, so much easier to go buy another. I was always led to believe the SON T ARGO bulbs by philips were the best and covered the biggest light spectrum.

ok i will look into them

my plants have dne the same thing thecloser to the light the leaves are the lighter color green they are

I have to give up to you for the ghetto riggetry.. it looks like its working good too