LED Panel Distance Canopy

[NinjaMaster]

Hey Dudes,

is 12" above canopy too close for flowering with a 180w input wattage LED?
i have no idea how close or far to position my LED's.
ive been @ 18 - 24" the whole time but i dropped it to 12" now to test and just thought id ask

 

[auto1dwc]

You can go as low as 6-8in,
You can feel the heat when you put your hand on the light panel, move your hand slowly away from the light down towards your canopy and you can feel the difference in temp within a few inches.

 

[IgrowUgrow]

12" should be fine as long as there is optimal air movement under the fixture.

 

[Lordhooha]

Hey Dudes,

is 12" above canopy too close for flowering with a 180w input wattage LED?
i have no idea how close or far to position my LED's.
ive been @ 18 - 24" the whole time but i dropped it to 12" now to test and just thought id ask

Depends on the led I have to keep mine at least 36” an dimmed down to 50% or they start bleaching out.

 

[LouixFrenchton]

Agree with Lord, it depends on type I think. The COBs with reflective lens to increase light penetration are powerful.

Depending on age of the plant you won't want to cause light stress which is more likely when closer than 1.5 ft / 45cm / 18".

I think the panels, with the red / blue individual diodes tend to be able to get closer / less intense, but have no personal experience with them

Your plants will tell you within a day or two if it's too close by drying, bleaching, curling at the top leaf

 

[NugHeuser]

I agree with the 2 posts above. With leds it's not so much heat that is a problem, led's will bleach your plants, turning tops white if they are too close. If you're using blurple leds than you're probably fine. If they're higher power leds like cobs, especially if they have reflectors, then you may want to back them off a bit depending on the size of your plant. Big mature plants can take more light than younger ones.