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Anyone else use COB LED lights?

OldManGrower

OldManGrower

New member
My set up is a 32"x32"x60" tent. I have 410 actual watts of COB lighting in three fixtures (300w., 50w. 60w.) I have been happy with them and have done at least five grows with them. I haven't seen any comments from other growers regarding this type of light and their experiences with them. I can say the heat is low, the light are bright and have great vegetation penetration. I keep them about 20" above the plants. I try new things each time I do a grow. This time I am working on yield which seems to be my most noticeable weak spot. I would appreciate hearing from any of you with experiences with these types of lights.

May you plants grow tall, your buds grow fat and your life be pleasant.
 
Hey OldManGrower - I've been using my Cree Cob light for the last three years - works great but like you I've been a little disappointed with the yields. I've convinced myself that the bloom lights contribute to WPM - but that's just me. Time for a change.

So yesterday I purchased a Mars Hydro FC-E3000 - $350 Canadian on Amazon - should get it in a week or so.
 
Hey, thanks for the response. No one seems to post anything about COB lights and while I am not into the latest gear, I wouldn't mind hearing form others. I was not implying that the COB lights may be in part to blame for my yields. First and foremost it goes to "grower error". It's a process.
 
COB LED grow lights are regularly outperforming normal LED grow lights of similar wattage. The best COB LED Grow lights can compete with normal LED grow lights with 10% higher wattage output.
 
I can't comment from experience, yet. I just started my second grow yesterday,first with these new COBS. Went with the Timber fatty-vs, hoping they work good at 950 watts from wall in a 48x48. Can't be any worse than what I had.
 
I have a couple Optic 1XLs cobs (100w each) I used them to light up the corners in my tent that weren't getting enough light. I thought they worked well for supplemental light but I don't think I'd use them for my primary light source. They put out alot of extra heat as well.
I switched to a Growers Choice Roi 680e in my current grow and couldn't be happier. This light is a freaking beast.
 
My original DIY arrays I built 4 years ago use Vero cobs.
I added a pair of 44" double-row F-strips as outriggers on the sides of the 4-emitter arrays,
That gives me 460 watts as well as 35 watts of 660nm reds for a bloom boost over a 2x5 footprint.
I also run a 480-watt qb fixture in my pheno tent, so I'm familiar with both types of fixtures.
Primary difference I've found is the fact that cob's, like HID lamps, are a single-point source of light so getting uniform distribution can be a challenge.
 
I hope so, they claim 7x7 veg 5x5 flower. I added 2 2ft double T5 bulb fixtures with pure UV bulbs. Had to redo the grow room to get them bad boys in there.
 
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