Das fair, I know the higher end more efficient cobs, but like I said I'm looking for the cheapest option that produces ok results as money is his issue currently.
Look at viparspectra on Amazon. I am running their 900w ($299).
Right. Then best deal is timber grow lights.
The issue is going too cheap, and the answer is going to be 3x 315 CMH or a 1000W DE fixture. There's nothing wrong with those.
I wish I could like my own posts, you sexy thing you.
lol. It was good, but not THAT good...
I got excited seeing under $1/W for a complete lamp.
That is sexy alright. I would like it even more if it had 9 cobs to spread evenly, but it sounds like 3/4 of that setup would be enough to replace 1000watt hps. New 140K and in a reflector and a grow space maybe 70% of that on the plants, 100K. The option you suggest but with six cobs is 600watt, $450, also good for 100K or so.
Yeah your math is probably right, but I was giving Gavita the benefit of the doubt with their >2000 umol/s claim. Since op didn't say the size of the area, just 800-1000W, Bob's yer uncle, have a light. I thought a flat water jetted holder for 2x IceLED and a driver between them would be a nice 200W modular unit.
So $300setup for 4 cobs and maybe $50 for material and holders, would then be about 65K plenty to replace a 600watt hps. Makes me wonder why I'm waiting on the new vero29.
I am pretty sure you want the HLG-185H-60B. They run around 52 volts, I think.
all cobs are meant to be run hot (-ter than we run them). cree doesnt even show any specs under 1.4A for CXB3590s
then run a citi 1825 @ 150W per chip
