TichySmokeSmoke
Well-Known Member
Have a T5 22'' two bulbs and i didnt read anywere on how far it had to be place away. any one know?
T5 and How Close does it Need to be for 4000 lumes?
- Thread starter TichySmokeSmoke
- Start date
TichySmokeSmoke
Well-Known Member
Right now its 2 ' away shall i pull it closer?
Swag
Well-Known Member
I'm pretty sure the "rule of thumb" is to put your hand under your light... if it is hot on the top of your hand it is hot for your plants. Your using fluroescent tubes so you probably don't have too much to worry about 
. If the leaves begin to grow upward at about a 80 degree angle than that means they are heat stressed an you should move the light upward more. It won't necessarily harm the plant but it will slow down its growth a little until you move the light to a less heat radiant distance 
. If the leaves begin to grow upward at about a 80 degree angle than that means they are heat stressed an you should move the light upward more. It won't necessarily harm the plant but it will slow down its growth a little until you move the light to a less heat radiant distance
TichySmokeSmoke
Well-Known Member
Alright nice trial and error method. at 2' They are responding great....better to this than the 1000w at 38'' away. Have twelve seedlings and two clones under and all responding very well.
Dizzle Frost
Well-Known Member
I run 2 -25 watt tubes and i keep em about 1-2 inches away. As long as yur foliage is not touching its golden. Mine are just under 5000 lumens so yurs should work about the same.
closetkush
Member
i have 4 bulb 4 foot bulbs 2700k, i keep them as close as possible.. no more than 2 inches away, gotta get all the light you can out of floro tubes.. i also have 68w cfl 2700k for additional side lighting.
TichySmokeSmoke
Well-Known Member
Alright thank you both for your help, Just raised it and got them 6 inches away.
++rep for both
++rep for both
Dizzle Frost
Well-Known Member
You can move em even closer if you want tight stacked nodes. go like 2 or 3 inches. Just make sure you check em daily for growth or they will grow into the light.
TichySmokeSmoke
Well-Known Member
Alright Gonna do it, I have the SunBlazer like 6000k or something
shannonball
Well-Known Member
get the plants as close as you can to the light so they don't stretch out and become all spindly. have a 6 inch fan blowing (oscillating) over them to help strengthen them and keep them cool and comfortable. temps should be around 80 +/-
NLXSK1
Well-Known Member
Yeah.. You are a little confused...
6000K refers to the light spectrum, not the light intensity.
If you dont put that light almost on top of your plants they are going to stretch.
You really cant hurt plants with flouros.
TichySmokeSmoke
Well-Known Member
thank you i did not know that, Right now there 2-3 inches away. the new nodes being formed look really stacked from each other. Really awsome light. Now would i be able to mother with this light?
TichySmokeSmoke
Well-Known Member
had a friend tell me yes i would be able to just get bushy. has anyone tried mothering under this type of light?
NLXSK1
Well-Known Member
Mothering is fine under the light.
Flowering usually requires something stronger if you want hard dense nuggets.
TichySmokeSmoke
Well-Known Member
have a 1000wat hps for that, just had to know if it could be done under the t5. Thank you again.
closetkush
Member
vkambull
Active Member
i gotta disagree with that. i was moving some plants around the other day, and slid a tall one under my t5, and it just about smoked the whole top. i wouldn't let mine get any closer then 2" with a fan.
Dr. Bigbud
Well-Known Member
As close as possible, that usually means daily height checking. but your good 1 inch, as long as you have air circulation they wont burn inless they hit the bulb for a long time, which sometimes is in less than a day cuz they grow fast.