Im pretty sure that qb96 spectrum has been changed from what it used to be, used to be higher 660 than 630 peak if im not remembering bonkers. I like 90cri phosphors to target 630 though, the 630 diodes tend to be crappy ppf/w
The qb96 has red supplementation of both 630 and 660nm which is somewhat different to most other boards made by HLG and the like. White + 660 boards usually end up with a bit of a dip around 630nm.
Its a bit pointless though. Qb96 is a board made for high watts and have chunky heatsinks. There arent that much efficiency benefits in running it soft as the midpower boards.
+1 DIYer :)
Diying gives you the possibility to make any light configuration you want, specifically for your situation.
On ppfd and spectrum: personally i like very much fannying about with spectrum. No, spectrum wont change yield very much but it can bring up quality and speed up flowering...
Could you give a bit of info on those pcbs? Like what diodes do they take in what combo and price and aource? They look really nice. I quite like the 4up options
To solder a mono diode is something you learn in 2 or 3 tries. And to solder leds to pcbs is not that much harder; i know people who just tried and did it. There are several diy ways; even with a frying pan, hairdrier or panini oven.
Id defo recommend trying to solder together a mono string to...
Theres a very helpfull document back in the thread posted by hyrootz (i think?) it resumes a lot about perched water tables and wicking in purpose of the ppk system.
Its quite different but the way it describes how media and water reacts is the same.
How much water the wick sucks up from the bottom rez depends on a few factors:
- material of the wick: coco would wick much better than perlite for example.
- how thick the wick is: long and thin eicks less than short and wide.
- distance between the water surface and the bottom of the pot...
Thats ridiculously cheap. Though you would be working with fairly high voltage; make sure your soldering is good if youre going to do a +100 led string. The nice thing in a setup like this is that you would be able mix and match, add as many uvs/reds/far reds as you like cause everything is at...
Id recommend adding some type of air cleaner for the air inside the grow space aswell as your carbon filter for extraction. Ozone generator both cleans the smell and kills pathogens but theyre quite pricey.