All COB Users - Lettuce Grow Challenge!!

[OneHitDone]

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!

 

[Tim Fox]

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!

View attachment 4397549 View attachment 4397550

way cool, will be fun to watch this one,

 

[Tim Fox]

Just wanna shout out @Stephenj37826 and @robincnn - Your HLG65 is doing a stellar job in the hands of someone with a green thumb for greens!

View attachment 4366711

good looking panel, and good looking food too

 

[Tim Fox]

ever hear from evil mobo anymore?

 

[OneHitDone]

ever hear from evil mobo anymore?

All the time brother

 

[OneHitDone]

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



MH


QB65


MH on Left - QB65 on right

 

[OneHitDone]

So, here is a Day 7 update now that the website is somewhat back up and running

 

[OneHitDone]

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

 

[Renfro]

Thats some expensive lettuce. lol just yanking chains.

 

[OneHitDone]

Thats some expensive lettuce. lol just yanking chains.

Not really brother, $3 a head for the clamshell that still don't touch on home grown quality and it's only a 30 day turn around from seed

 

[Renfro]

Not really brother, $3 a head for the clamshell that still don't touch on home grown quality and it's only a 30 day turn around from seed

I wish I could grow a steak plant. I guess I'll have to stick with growing weed and buying steaks.

 

[PSUAGRO.]

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

Can't find the old thread for some reason

 

[OneHitDone]

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

Can't find the old thread for some reason

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.]

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.

Sound level? Muffler necessary?......... Longevity/reliability is everyone's worry with these Chinese DC motors, fingers crossed it holds up.

 

[OneHitDone]

Sound level? Muffler necessary?......... Longevity/reliability is everyone's worry with these Chinese DC motors, fingers crossed it holds up.

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]

Day 14 Update for the 100W MH vs HLG 65 Showdown

 

[Tim Fox]

Day 14 Update for the 100W MH vs HLG 65 Showdown

View attachment 4408230View attachment 4408232View attachment 4408233View attachment 4408234View attachment 4408235

is it me,, or do the bulbs win everytime?

 

[OneHitDone]

is it me,, or do the bulbs win everytime?

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.

 

[OneHitDone]

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



HLG 65 Day 16



HydroGrowLed 42X at Day 16

 

[PSUAGRO.]

Ambient temps? Between the groups......