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aint gonna lie. it was all impressive, but when i got to the "cleanup" pic... i might have gotten a boner

its enough for a 2x2. a more efficient led could do the same for 140ish watts

it is certainly a board with diodes that will light up and grow weed

@Rahz does

ive got just a few, will put up on site now. get em while they are hot http://cobkits.com/product/slate-2-heatsink-for-quantum-board/

At Atreum Lighting, we are focused on delivering high-quality products and an amazing customer experience. We design our LED boards* and work hard to source the best components available. We have quality checks throughout the manufacturing process; in fact, every light passes a power-on quality...

well it is two common words.. that adequately describes the product of "horticultural lighing" so theres not much they can do really

well at best by the time you buy the extra chips etc you'll end up with a light worth $300-400 for a cost of... $300-$400 amazon has a great return policy, i would take advantage

for the work of retrofitting something you havent even bought yet just build from scratch on bar heatsinks and use a better driver

'bout a pound

at the end of the day you have about a 3500k spectrum. using equal amounts of 4000k and 3000k is the same as using 3500k

more info on metal halide in the HID section https://www.rollitup.org/f/indoor-growing.49/

remember that cob voltage is dictated by current, see datasheet. running cxm22s at 0.25A would be major flux tho

id do 2 citi 1212s per driver

remember all meanwells have high current on starting. you may need to use slow blow fuses or upsize them considerably

what are you using fuses for?

you dont have a breaker in or near the house?

most good leds if they work for a year will work for 20

youre going to need to find some cobs that light up under 48V, 48B is a weird driver for our application you'll be limited to about 0.25A citi1818/luminus cxm22 0.35 citi 1825/vero29B might be better to carefully throw some 36V cobs on there (i say carefully because any less than 3 on there...

just go thru your distributor those failures are pretty rare. id triple check your wiring first. maybe there was something else obvious you overlooked that fixed itself when swapping the driver