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for assembly look at this video on youtube by Led Gardener you got the 2 board kit so no frame is necesary. the heatsink has holes in the fins for hanging lenses? many on here feel QB's dont need no lenses. but you can if you must.

mothers are for getting clones off of. they never go to bloom till you say they are done as mommies. so while they are mothers they are vegging

I have 2 288QB's in 5000k I use for a veg light for mommas, seedlings, and clones. 5000k is the equivelent to the mh HID bulb spectrum. 2700k, 3000k, and 3500k are best for flower time. the bottom line is this how many tents or rooms are you getting lights for? if your only getting one tent...

since when can an auto be mainlined? thought autos could not handle alot of training just a bit.

well its the drivers that will run the ac not the dealer. and the meanwell drivers are rated at input 90VAC to 305VAC so put your NZ plug on it and dont worry. infact mention to them where its going and they might supply the plug

heres some thoughts for you. first off the hlg 300 is a prebuilt fixture hlg sells which is nice but they also have a diy kit in the same wide configuration. https://horticulturelightinggroup.com/collections/diy/products/260w-xw-qb-led-kit whats nice about the kit is it includes everything you...

solid core is best for the connector it goes into. stranded wont work

https://horticulturelightinggroup.com/ the best as far as I am concerned.

tru dat stay away from chinese knockoffs on these. do what I did get 2 260wQB kits for 325 each and right there you got the equivalent of an HLG550 and get them in the 3000k spectrum good to go from veg to flower in 1 tent.

I have developed a rule after I became unclutterd from my unneeded belongings. b4 i get anything new I ask myself do I have a Place for this?

and it keeps Coming and coming... :shock: I had HID bulbs and looked extensively into COBs but never jumped in on the cobs. then Quantum Boards hit the seen with lm561c series 5 chips and 304 of them little chips on 1 QB then shortly after series 6 chips hit even better and I jumped on them...

in order to use the driver I think more info is needed volts current and watts. i dont think anyone can honestly answer with just watts provided to know if they would be compatible. for your space though I would use 2 or 3 of the hlg 65 fixtures...

As I'm sure you noticed the hlg300 comes with 2 288QB's and is an assembled fixture no assembly required except to mabey install the (included rope rachets (looks like 2 sets) the hlg320xl uses the same boards as the hlg300 but the hlg320xl comes with 3 288QB's and a different driver to power...

Quantum boards are best used in a tent with a reflective surface on the walls. (like a Gorilla Grow Tent) in a dedicated room with enough boards it can be done as well take a look at greengrassgrower's work with them. https://www.instagram.com/greengrassgrower/

its funny when i first saw this post I went to the hlg site and was searching for a 8qb kit with 1 huge heatsink. then it dawned on me that it was not a kit but the single qb and single heatsink x8 combo

i would try to re-seat the wires in the wago's and see if that clears it up

to know what temps might be like first you need to know the room temp the tent is in. then measure the temps in the tent with the lights on driver in tent and next lights on temp with driver outside the tent and if your using a charcoal filter then the exhaust fan will effect your tents temp.

Well if your using one rig I agree with @keepsake 3k & 4k if your gonna have 2 rigs one for veg one for flower then 3k for flower, 5k veg

ok guys lets put a fork in it please lessons learned

hes saying dc wave forms are not true sinewaves as your picture depicted