How close you keep your lights

IcanMJ

IcanMJ

Well-Known Member
I have 3 huge CFL's 105 Watts each.
one 30K Spiral
one 41K Spiral
one 50K Tube style bulb
All three in a 3x3 tent with good air flow in and out.

The closest I can get these lights to the planter top (nothing planted yet) is about 7" before the temp gets very hot (the tent room temp is normal). Iam worried that is to far and when I plant the seeds they will come up all skinny and weak. So how close is to close with these huge CFL's? I have read about the normal CFL bulbs getting within 1" - 2", i would like to know about these huge bulbs Thank you.
 
my bad, do you have a fan? i can hold my bulbs in my hand while they're on and they don't burn me.
 
Give it a few inches at least. I was trying to put my CFL's right up next to my girls but it was counter productive. Giving them a few inches of clearance lowered the temps more than it reduced the intensity of the light.
 
I kept my T5 about 2 inches away when i was using it, and I have my 400 HPS about 10 inches away right now. the plants dont burn b/c i air cool the hood and keep cool air blasting them constantly
 
IcanMJ said:
I have 3 huge CFL's 105 Watts each.
one 30K Spiral
one 41K Spiral
one 50K Tube style bulb
All three in a 3x3 tent with good air flow in and out.

The closest I can get these lights to the planter top (nothing planted yet) is about 7" before the temp gets very hot (the tent room temp is normal). Iam worried that is to far and when I plant the seeds they will come up all skinny and weak. So how close is to close with these huge CFL's? I have read about the normal CFL bulbs getting within 1" - 2", i would like to know about these huge bulbs Thank you.
Click to expand...
i have a 125w bulb that i keep 1-2 inches away from the top of my plant she is doing good. you just have to make sure they don't grow into the bulbkeep them 1-3 inches above your plants you should be good to grow. gl on your grow. what strain you going to grow?
 
Strawberry haze Scrog. Greming now. I have read a lot but still learning.

So I should not get worried about what the temp says at the top of the planter?

I have a 24" tower fan moving back and forth on low Cooling the top of the planter to the bottom of the lights.

If I get the lights within 5" of the top of the planter the temp says 85+ (91 once) the room temp is 77-82 - light time.

I tested the feel temp and moved the light lower the temp jumped from 80 to 85 within one hour. Bump them back up.
 
IcanMJ said:
Strawberry haze Scrog. Greming now. I have read a lot but still learning.

So I should not get worried about what the temp says at the top of the planter?

I have a 24" tower fan moving back and forth on low Cooling the top of the planter to the bottom of the lights.

If I get the lights within 5" of the top of the planter the temp says 85+ (91 once) the room temp is 77-82 - light time.

I tested the feel temp and moved the light lower the temp jumped from 80 to 85 within one hour. Bump them back up.
Click to expand...
try reading through this GROWFAQ
 
pppfemguy said:
lmao.....cfls suck dick for beer money there weak as fuck
Click to expand...

Wow what exactly is your problem? There are plenty of pics of people's bad ass CFL shit around, maybe you should do some reading before you make yourself look stupid. Theres a whole book and a mod of this site based around growing bud with CFL's, and not everyone has room for, needs or wants 50 plants and 1000 watts of lighting.

Please grow up.
 
fierybong said:
Wow what exactly is your problem? There are plenty of pics of people's bad ass CFL shit around, maybe you should do some reading before you make yourself look stupid. Theres a whole book and a mod of this site based around growing bud with CFL's, and not everyone has room for, needs or wants 50 plants and 1000 watts of lighting.

Please grow up.
Click to expand...

For real 2 got 2 pics of a plant grown by cfls and damn its huge
 
fierybong said:
Wow what exactly is your problem? There are plenty of pics of people's bad ass CFL shit around, maybe you should do some reading before you make yourself look stupid. Theres a whole book and a mod of this site based around growing bud with CFL's, and not everyone has room for, needs or wants 50 plants and 1000 watts of lighting.

Please grow up.
Click to expand...
my problem is exactly people like you and that other guy who knock mh/hps when they are 10 times better then cfls theres pluses and negatives to everything about growing lights i just find that theres more pluses to mh/hps over cfls but hey if you are successful with cfls props to you but i myself perfer to use the mh/hps method they grow faster and produce better and bigger buds its a proven fact so before you come at me read a few more books and expand your brain on growing then talk to me like you know something capeesh??
 
You must log in or register to reply here.

Similar threads

S
Superboof & Chimera #2-just flipped 12/12
Replies
17
Views
1K
STPsd
S
J
sansi 100w budget grow light (just my opinion on it)
Replies
3
Views
2K
coreywebster
coreywebster
P
First Time Auto - What light schedule/Temp/RH do you normally run with during flower?
Replies
10
Views
1K
Blue_Focus
Blue_Focus
shotnva777
Help me pick my 4x4 light! $350 to spend
2 3
Replies
41
Views
5K
Kief Stoned
K
R
Lights
Replies
1
Views
503
hotrodharley
hotrodharley
Back
Top