inthetrees
Active Member
What's everyone running their panels at for height above canopy? I see more people running the HLG style boards VS the multi bar setups... I know everyones wattages differ in range too, but just thought I'd ask...
Distance to canopy...
- Thread starter inthetrees
- Start date
18" - 24" is pretty common. I try to keep them at 20" - 24" in veg and 18" - 22" in flower.
BrokenHoeFarms
Stress Tester
inthetrees
Active Member
Oh man... I got some lowering to do. Thanks for the input
Streetpro09
Tester
In flower I'm running 6-8". It's my first led. Hasn't burned any leaves or bleached buds yet.
That is too close for QBs or strips running LM301B/H or LM561C LEDs unless they are dimmed down a lot. Even if they aren't burning yet it can slow down the development of the plants.
inthetrees
Active Member
Okay sweet. I have the 8 bar 650w units and I see guys have em 6-12" in flower, but I was afraid of frying my plants since Im just ending week 1 of veg lol
TheSadVeryBadMadGrower
Wait...what?
You are gonna fry your plants with that light!!!
Streetpro09
Tester
Well its been up for 10 days now and I'm just starting to get some calcium spots on one of the plants. The other three look to be doing just fine. Maybe I need to turn up the power.
TheSadVeryBadMadGrower
Wait...what?
If it's that DIY....same happened to mine. All good then one day it was fried. Showed zero signs prior.
Streetpro09
Tester
I'll definitely keep that in mind. Kinda figured it would have happened already if it was going to.
NoWaistedSpace
I'm Hoarding Skunk
I acclimate at about 24 to 30 and let them grow into the light. Depends on your set up and the "photons" you are putting out. What do you want your plant to do? Short and compact or let them stretch a bit? Warm weather, you gotta watch your "leaf surface" temps.
MtRainDog
Blümen Meister
I've ran my qb's down around 6-8" above the tops of my plants with no adverse effect. I do have my voltage set conservatively though. Safety/temps first. Start at about 24" even for mature, flowering plants, and just keep lowering them/adjusting until everything seems happy. I think 12-16" will be the sweet spot for most people by the end of flowering if you're slightly dimmed.
sfrigon1
Seed Aficionado
just went through this . I'm at 20 now and good to go 
NoWaistedSpace
I'm Hoarding Skunk
You are absolutely right. Vero 29 Gen 7's. Different set up than the QB's. They are "workhorses".Funny how everyone has a different opinion. That shows u that every setup is dif . No two grows will ever be the same . Sorry just thinking out loud
You may be able to get away with it but just remember that, with LEDs, the issue of having them too close is not related to the heat they put out, it is an issue related to the actual intensity of the light. I’ve had some plants tolerate getting closer to some LED lights but if I have the vertical space I make sure they have at least 18”.
NoWaistedSpace
I'm Hoarding Skunk
I've been building Led's for about 5 years now. One I built has 6 Veros and 2 Atreum QB 360's on 1 HLG 240-1400ma. Parallel into series in the string. Pretty efficient.
Another is 1800 watts and will fit in a 2 x 4 area and up. I have never cranked that one up all the way.
Sounds like you could use that one for tanning
