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12C temps with lights off will absolutely cause red stems. install a dehumidifier and run it only when lights are off. thatll bring up temps. Do you get PM?

buy yourself a laser thermometer and get your leaf temps to 28C or 83F.

$1329 Canadian is about $1000 USD. spectrum is 3000k leds are Samsung lm301b SK bin 3000K driver is mean well 320h

https://www.bcblondes.com/product-p/bcb-680-3012.htm same specs as the gavita 1650, way cheaper.

Best bang for your buck: https://www.bcblondes.com/product-p/bcb-680-3012.htm Same output as a DE 1000 Gavita HPS, 40% less power and heat. 3 year warranty. 5x5 coverage. VERY even light intensity.

Check out the latest High Times Magazine to see our Game Changer 680 listed as the #1 hottest new product.

All good brother, im sure youll do great with what you bought. HIt me up next time, I got new stuff coming soon too.

Nice garden bro, well done

I order my diodes from several suppliers, sphere test, then put into boards. And yes they copied my board.

It has 4 levels of dimming, 100%, 75%, 50%, 25%. So no, it doesn't have TOO MUCH LIGHT. Its designed for 4x4 or 5x5. I use it on 100% power on 4x4's. The HLG unit is actually more expensive than my light in canada. The Cutter kit you mentioned is a DIY kit, its not even in the same category...

Very nice bro

What ppms do you feed at? what do you start at and what do you end at? I start at 1200 and goto 1600. I give pure water for last 7-10 days but don't get fading like this. I use co2.

I cant find the specs on the chilled pucks. otherwise I would of included them in my comparison.

Hey Bro. The easiest way to compare grow lights is to look at the total par that the fixture creates. BCB 680 GC 1636 PPF HLG 550 v2 1178-1257 PPF Cutter Kit: 1200 PPF The HLG and cutter kit put out about 75% of what the BCB 680 GC does. You will literally grow 25% less weed with the other...

No they are not. for one thing they are 960 diodes, and using all SK bins. You cant get 2.52 with out SK. Next production run is all SL. (coming in july)

1636 ppf 2.52 umol/joule Very even coverage for 4x4 or 5x5 https://www.bcblondes.com/product-p/bcb-680-3012.htm

checking run off ppm and ph.. I strive for 6.0 ph run off and between 1500-2500ppm runoff depending on stage/age etc. Keep in mind I am mostly in fabric pots so your readings maybe slightly different because some of the nutrient solution will drain out the side of the fabric pot and not out the...

Tiered 4x4 before defoliation, also showing the 3 tiered levels

Tiered 4x4's before and after defoliation. I defoliate usually when I kick into flower, then at 2-3 weeks, then again at 5-6 weeks. When you defoliate you remove dead or weak limbs and leaves helping to prevent mold and bugs, as well as stress the plant slightly which stimulates it to grow.

4x8 tiered table with 40 plants and 1300 watts