• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

All COB Users - Lettuce Grow Challenge!!

OneHitDone

OneHitDone

Well-Known Member
The OnehitDone Lettuce crisper is running low and it is time to restock so I'm throwing together another side by side while I'm at it.
Time to take a step back and reestablish some baselines so here we go.
The old trusty HydroFarm 100W Mini Sunburst with a Philips CMH lamp vs debatably the hottest 65 watt led currently on the market - the HLG 65.
So join on in for the ride! :hump:

IMG_4985.jpg IMG_4986.jpg
 
Tim Fox

Tim Fox

Well-Known Member
OneHitDone said:
The OnehitDone Lettuce crisper is running low and it is time to restock so I'm throwing together another side by side while I'm at it.
Time to take a step back and reestablish some baselines so here we go.
The old trusty HydroFarm 100W Mini Sunburst with a Philips CMH lamp vs debatably the hottest 65 watt led currently on the market - the HLG 65.
So join on in for the ride! :hump:

View attachment 4397549 View attachment 4397550
Click to expand...
way cool, will be fun to watch this one,
 
OneHitDone

OneHitDone

Well-Known Member
We'll just call this day 1.
Did a little thinning of the herd the best I could this early on.
Interesting note is that the MH plants seems slightly more robust at this stage fresh out the gate. Will see how that progresses :peace:

IMG_5011.jpg

MH
IMG_5009.jpg

QB65
IMG_5010.jpg

MH on Left - QB65 on right
IMG_5013.jpg
 
OneHitDone

OneHitDone

Well-Known Member
Day 14 update 2 days early since I gotta bail
The center plant on the MH side is a runt cause I accidentally snipped off the one I intended to keep when thinning :oops:

IMG_5077.jpgIMG_5078.jpgIMG_5079.jpgIMG_5080.jpgIMG_5081.jpg
 
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PSUAGRO.

PSUAGRO.

Well-Known Member
So how's the new exhaust fan treating you OHD? Any thoughts so far?

Can't find the old thread for some reason
 
OneHitDone

OneHitDone

Well-Known Member
PSUAGRO. said:
So how's the new exhaust fan treating you OHD? Any thoughts so far?

Can't find the old thread for some reason
Click to expand...
So far so good and no complaints. I have it mated with the Terra-Bloom 8" carbon filter as well.
I also picked up the 6" version for another area.
I will say the ducting they are selling is a bit cheap and not fully light tight even but it points the air where it needs to go. ;)
 
PSUAGRO.

PSUAGRO.

Well-Known Member
OneHitDone said:
So far so good and no complaints. I have it mated with the Terra-Bloom 8" carbon filter as well.
I also picked up the 6" version for another area.
I will say the ducting they are selling is a bit cheap and not fully light tight even but it points the air where it needs to go. ;)
Click to expand...
Sound level? Muffler necessary?......... Longevity/reliability is everyone's worry with these Chinese DC motors, fingers crossed it holds up.
 
OneHitDone

OneHitDone

Well-Known Member
PSUAGRO. said:
Sound level? Muffler necessary?......... Longevity/reliability is everyone's worry with these Chinese DC motors, fingers crossed it holds up.
Click to expand...
Just got back after 4 days out of town
I have never had a HyperFan for sound comparison but I would say these are similar to a Vortex etc in sound level on full blast. They move a lot of air!
 
OneHitDone

OneHitDone

Well-Known Member
Tim Fox said:
is it me,, or do the bulbs win everytime?
Click to expand...
Not 100% drawing a conclusion till the end. One thing I have noticed with led's in general thus far is that you get a burst of root growth at the beginning. Maybe the led plants will take the lead from the back of the pack by day 30? We will see. :peace:
 
OneHitDone

OneHitDone

Well-Known Member
Adding some Day 16 Data to get a direct comparison on where the plants where at in the HydroGrowLed 42X lettuce runs on Day 16 in my journal.

100W Metal Halide Day 16
DSC05628.jpgDSC05629.jpg


HLG 65 Day 16
DSC05630.jpgDSC05631.jpg


HydroGrowLed 42X at Day 16
DSC05579.jpgDSC05581.jpg
 
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