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Oh yes, that makes it all clear. You're a master! You went to school right? That makes you more knowledgeable? You got all the knowledge of the world nobody has access to. Soumds about right in the year 2000 of 19. Make sure you don't burn your fingers mate. Might hurt

Series or parallel it's god damn same shit if boards are seeimg the same power. What you're saying is total bullshit. Either wired series or parallel, at 100W those boards are gonna put off same ammount of heat. Bollox P. S. : and I have yet to measure that humongous voltage drop you're...

That all applies, yes. If you have a look at Samsungs datasheet for individual chip (561/301) and apply temperatures you can calculate everything pretty precise.

They are wired 8S12P (24V nominal)

At 1400mA you are supplying each chip with 116.6mA or 0.34W. Chips are rated at 0.3W nominal. With less current and more chips your efficiency will rise some. Like I said, since you're looking at Mufue your minimum order will be 50 boards. Id drive them softer and up my board count. You will...

Cold doesn't so that heat does. What's your humidity with lights on?

13 boards at 23.2V is 301.6V ;) Regarding safety, we're talking DC here. It's the frequency with AC that kills most of the time. My buddy got hit with 30KV DC and survived with some heavy burn marks on his back ;) but nothing lethal. I have no problem touching those wires with 300V at 1.05A...

Get a hlg 320h-c1050 driver and hook 12-13 boards in series. If you're buying Mufue boards minimum order is 50 so you'll have enough to build several lights. With 1400 driver you can run 9 boards and still have some overhead voltage. I got 6 running on a hlg 120h-c1050b topping out at 146W

First pic is female

I got plastic corners wit some weight hanging in there and it copes just fine

Keep your VPD in check and keep your air moving.

Photo dump

That branch looked a bit exhausted but made about 30 or 40 seeds. It was a transparent plastic bag hahahaha This was the offspring

Been doing that baggie thing in my tent. Had a male in an isolation chamber flowering together with females but only collected pollen in a bag and put it over a branch and taped it so none could escape. After 24h there was so much condensate in that bag no pollen could survive

Outdoors you have no control over stray pollen so you can't be sure if seeds are made with the male you're using or with some pollen floatimg around. Also keep in mind you can pollinate someones whole crop. Might get shot for that.

Read this thread https://www.rollitup.org/t/the-chinese-quantum-board-knock-off-builds.971560/

Like I assumed it was either a 4 board kit with one hlg 480 or 4 board kit with 2 hlg 240. Looks like the second option. Kingbrite also uses lm301B on their boards

Actually it's a light kit packed in a cardboard box with paid shipping to USA only. Kits are listed as sets but those are without packaging/handling/shipping fees sold to the rest of the world. Since USA looks like their biggest market target the offer a delivered product just like amazon prime...

1 carton says 1248 chips, 480W. I'd assume that carton stands for a light similar to hlg 550. The led count comes out to 4x312 chips on a hlg 480 driver or maybe even 2 hlg 240's. Is that Meiju?

No problem hahahaha