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  1. R

    All COB Users - Lettuce Grow Challenge!!

    Since we're in the mood for updates, I'll provide mine. My plan is to raise around 600 garden starts under COB's this season. This will be from seedling to typical garden planting size across many different veggies. I originally had intended to do a side by side between COB and T5. I was...
  2. R

    All COB Users - Lettuce Grow Challenge!!

    This is very interesting and somewhat counters what is thought to be common knowledge in indoor agriculture lighting. I love the experiment you're doing. I'm wondering if you've factored in the ~13.5% lumen output difference between the 2700k and 5700k outputs. I'm curious if you could...
  3. R

    All COB Users - Lettuce Grow Challenge!!

    It looks to me like they're using two different LED coatings to get the spectrum changes. My guess is you'd have to dim one to have another be dominant. The dark orange is probably 2700k and the yellow is probably 6500k. So the 2700k setting is full power on the orange side, dark on the...
  4. R

    All COB Users - Lettuce Grow Challenge!!

    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...
  5. R

    All COB Users - Lettuce Grow Challenge!!

    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...
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