OneHitDone
Well-Known Member
Looking good Brother @PicklesRus , how long have they been under the LED's?
All COB Users - Lettuce Grow Challenge!!
- Thread starter OneHitDone
- Start date
OneHitDone
Well-Known Member
Finally remembered to check this out. The "20W" Led is drawing 16.9 - 17.2W at the wall. Kind up and down rapidly, is that normal with Chinese Led's?
Howdy everyone! Well, I just wanted to post a "thank you" for all your research into non-cannabis growing with COB LED's. I'm more of a traditional gardener, but have always taken a cue from you closet horticulturalists for my indoor lighting needs. I read this thread and many others front to back and appreciate the valuable info.
I ultimately settled on a trial run this year to raise ~200 garden starts under a quadtuplet of Citizen 1212 6500K COB's. I just don't need the PPFD you guys do, but am crazy stoked over the electrical efficiency considering I pay 20 cents per kilowatt hour.
If you're interested in progress, let me know and I should have serious results by late April/May across many veggie varieties, at least to planting size. Sadly, my lettuce goes straight into plug trays outdoors...but I might consider some trials to full fruition, if needed, after I roll out the garden.
I ultimately settled on a trial run this year to raise ~200 garden starts under a quadtuplet of Citizen 1212 6500K COB's. I just don't need the PPFD you guys do, but am crazy stoked over the electrical efficiency considering I pay 20 cents per kilowatt hour.
If you're interested in progress, let me know and I should have serious results by late April/May across many veggie varieties, at least to planting size. Sadly, my lettuce goes straight into plug trays outdoors...but I might consider some trials to full fruition, if needed, after I roll out the garden.
Evil-Mobo
Well-Known Member
I just hung two of the same for my "closet" nursery/pre veg area. I am very interested how it goes for you as my basil and lemon will be going in there too and more veggies to come as my brother went crazy with a burpee order and he has to give some seeds away now
Closet is 2x4 internal dimension and it was bright in there LOL Each one runs @55W/1050mah I still need to tidy up the mess with the wires this was the first test to make sure the lights turned on before getting the zip ties out.
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OneHitDone
Well-Known Member
Please do post back with progress and results. This is the only way for us to navigate our way through the led jungle and find out what really works in the grow room and not just on a data sheet.
pinner420
Well-Known Member
Are those the autocobs?I just hung two of the same for my "closet" nursery/pre veg area. I am very interested how it goes for you as my basil and lemon will be going in there too and more veggies to come as my brother went crazy with a burpee order and he has to give some seeds away now
View attachment 3913992
Closet is 2x4 internal dimension and it was bright in there LOL Each one runs @55W/1050mah I still need to tidy up the mess with the wires this was the first test to make sure the lights turned on before getting the zip ties out.
Evil-Mobo
Well-Known Member
Yes I have four 3500K going in a 3x3 right now as well and I'm in shock so far............
Comparison thread to come soon vs a QB light in an adjacent 3x3..........just need to finish germing some beans no one wants to see that boring part so just posting veg pics in my thread and will do the separtate log when the first plants start flowering fully and the stretch stops.
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Figured my research might be relevant and interesting to the thread. These run right around 50W as well off the common HLG-185H-C1400B driver. I've actually dialed mine back to T5 light levels for the moment as I'm apprehensive about killing my plants with this thing!
I also forgot to attach a pic of the new rig, it will hopefully handle four 10x20 trays. For now, I'm just nursing a couple winter damaged plants, rooting a couple house plant cuttings, and growing some bulbs n' green onions under it.
Evil-Mobo
Well-Known Member
Looking good I will keep an eye out for your progress.
Dreddd
Well-Known Member
Beautiful setup! what kind of LED strips are you using?
PicklesRus
Well-Known Member
26 days
PicklesRus
Well-Known Member
Bridgelux EB series. Those are actually the 3500k and 4000k... my 5000k and 5700k are on the other shelf.
AtterStiga
Well-Known Member
Has anyone any experience starting various veggies under cobs for planting out? It seems I will have some space to spare while my upcoming girls fill out the tent I'm getting. I can easily imagine zones with different light intensity if that is required. Love this thread btw.
thetr33man
Well-Known Member
Here are some non lettuce cob plants I have going.
I start all my seedlings for my garden indoors also, they can handle pretty much anything adult plants can handle, they are designed to be under the sun after all. Doesnt hurt to keep them a little farther away for the first few weeks tho. I usually use a humidity dome till they break the surface of the ground also.
I start all my seedlings for my garden indoors also, they can handle pretty much anything adult plants can handle, they are designed to be under the sun after all. Doesnt hurt to keep them a little farther away for the first few weeks tho. I usually use a humidity dome till they break the surface of the ground also.
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PicklesRus
Well-Known Member
Not sure if it's too soon to tell but I think that having only two LED strips above the plants doesn't give enough exposure from different angles to develop a nice canopy...
or my lights should be closer
It's reading around 100 PAR at the edges to 250 in the middle. I don't think that's quite good enough. It's only around 9300 lumens. I'm going to up this shelf back to 20,000 lumens and build another at 15,000. I'll also hook up my trusty three Philips production modules on another level
or my lights should be closer
It's reading around 100 PAR at the edges to 250 in the middle. I don't think that's quite good enough. It's only around 9300 lumens. I'm going to up this shelf back to 20,000 lumens and build another at 15,000. I'll also hook up my trusty three Philips production modules on another level
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PicklesRus
Well-Known Member
He's so little - took a while to get him There didn't it?
You can grow him really big
PicklesRus
Well-Known Member
This is an awesome thread.
RandomHero8913
Well-Known Member
Hey guys, I've got everything set up for the 90CRI different CCT lettuce test except the grounding part. All my other fixtures are built around a frame to make one unit which makes grounding easy. This run I'm using five 105mm pin heatsinks with a piece of angle aluminum on opposite sides so I could hang them with eyebolts. I'm powering all 5 with 1 driver and my question is this: Do i run a grounding wire to each heatsink?