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+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...

Yeah, but your still achieving 180° throw thru the help of a reflector with very real losses. Led gets 120° throw without any costs.

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...

There is also the issue in turning the light; hps is omni directional and you lose a lot of light on cannopy thru reflectors

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.

Take it from a swede, never buy grow goods from ikea. Not even shelves. Its the furniture version of fast fashion.

Thx, its good to know where to start and that its reliable info. Enjoy springtime and boating, just put the fam boat in the sea back in Sweden, every year its nervous since that time the boat fell out of the straps of the crane, luckily it was already over water

A bit off topic on the thread, dont wanna disrespect ops topic. Im going to read up on it a bit more (if you have a good starting point/thread it would be welcome) and maybe ill get back to you if i have questions. Asked here cause youve always seemed to be a friendly and helpfull soul from...

Thats really cool and something i thought about trying a few years ago. Do you mind if i pick ur brain on this over dms?

I think also some is breeder based: its a lot more profitable for a breeder if the customer cant make clones. In my case, wanted to run Novarine but could get seeds from elite, they were sold out and not making anymore. But they do sell an auto version id like to try, even if it irks me a bit...

Leds dont carry any infrared radiation, in difference to any other light source (that i know of, maybe fireflies?) So plants have allways evolved with some heat on their leaves. Without that heat 2 problems arise: insufficient transpiration; drinking slower, and slower metabolism in comparison...

What models was it? Ive heard the 320s dont have voltage adjustment for the ABs. It errs me completely that years after the intro of the ABs there is t really any clear info on this

If they are in series as you say then no probs with using different voltage, they just add up. Would be a hard board to aource drivers for though, 57-58V board.

For high lifetime try to keep your leds at under 50C at junction, they will probably outlast your life. But keep in mind that lifetime tests graphs dont seem to match up by reallife testing by growers: Migro made some tests a few years ago of various growlights, kept them.on for a year or so and...

Yeah well i am one of those led believers but i realize it may not work for everybody. The tricky thing with led is that you really have to be able to dial in your climate, especially in an open space which is our situation, its just so much harder to keep the space hot enough, especially during...

You have to factor in all power consumption; both light and climate control. If you end up adding another 200w in heating that spider farmer consumes the same amount in total. Im not a hps troll, use led for our grow, but sometimes hps has its place in the grow though id probably prefer cmh if...