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Should have the thermistors coming tomorrow, will make a new vid covering basic thermistor thermal protection utilising the 10v dimming circuit. Also worth mentioning, 4 of the 5 of these 600w monsters are going into a single veg room, I've been in touch with a chinese supplier discussing a...

Awww, shucks, now yer just tryin to make a dood blush! was real happy with that build but as a honest disclosure, it is suffering from some thermal gradient issues having a single airflow across the whole heatsink, its being adequately cooled from a single 4" but I have offered to retrofit the...

I wouldn't trust me either! Check out Cutter Electronics.

Sorry, no, but its a shit design, don't attempt to copy it! and no again, its not painted or powder coated, it is just still sporting the protective clingfilm the final look was bare ally, check out to 200% overdrive vid to see why we call it Lucifer!

is wot we built, wipes the floor with a 600hps in flower

I could knock something up to order or point you to our uk suppliers if you prefer to home build; or more... if heat is not an issue.

It is a cheapo chinese one and its pretty crappy, a ton of useless footage on the cutting room floor but just one of the 100 buck versions, in reflection 2-300x is ample for everything in those shots except some of the nematodes which are in the 100 micron size, notice the water at this scale...

This is the other slightly more complex part of the biological equation, atmospheric/planetary standing charges. Almost impossible to meaningfully measure and estimates vary wildly, but my best meta on all the results is between 500Kv and 10Mv standing charge at all times between the ionosphere...

Shit's gonna get real weird more like! freemanjack has entered the building! in answer to your question about synthetic replication of biological systems, no I am not referring to the 'soul' it is simply that the complexity of the natural processes are such that merely replacing the source of...

Another little quickie video compilation for you, featuring incredible high speed photography of 'red sprites and blue streamers' recently discovered high atmospheric lightning events. Tell me that ain't trees in a wood??

Thanks fer the vote of confidence but I don't need any, is quite appropriate criticism, and I wasn't mumbling, its just the wind noise had crept up and I never noticed the audio auto-levelling down. I would have done an overdub after the first few minutes but I'm busy an everyone was wanting to...

Sorry, UK based and I prefer to keep growing thanks! shhh secret squirrel!

<90% tho we haven't done the power factor measurements on these 300w units, the 240w ones were over claimed spec on measured input/output.

BINGO!!! Yer a sharp mofo innit? plants ARE frozen plasma, however it appears to be a very delicately balanced dynamic system, I suggest all but impossible to fully synthetically duplicate or artificially augment beyond the innate capacity of each natural system. you could try utoob fer...

You can measure the voltage between the soil and plant with any basic multi-meter, best not to leave it connected tho, the plants tend to suffer from the meter acting as a 'short circuit', standard milli-volt readings would be in the 100-250mV range, roughly a quarter of a volt dc, when you add...

Vermiculture is a LOT easier AND it deals with all your cabbage and stalk disposal issues AND the little feckers hoof out a ton of CO while they are at it! Ran a 1000 plant grow on a few hundred ml of agro-nukes per month tops! everything else was taken care of by our worms. Happy little chaps...

In theory the cases will not be live, so perfectly safe to have them touching electrically speaking, tho you need to be mindful of creating hotspots in the light distribution from overlapping light 'cones', most CoB style led's emit a 115 deg cone of light, try to visualise that like an upside...

AWESOME THREAD!!!!! Agree with every word in the op's initial post, top shelf info, concisely and clearly explained, bravo my fiend! bravo! Agro-chems will be the death of our soils if we don't cut the head off the beast NOW! Geoff Lawton is one of my very few heroes. If anyone is remotely...

Quite simply, cost. Meanwell will be made from entirely mass produced components produced in the far east, brightstar led are a shengzhen province manufacturers who will customise drivers to order, publish all the individual component manufacturers they use and have market leading efficiency...

Just looked at the spec sheets and looks to be the right driver/led combination as long as you are ok using series wiring to divide your 48v to get down to the 4 x 12v of the led's. Personally I would use a 12v driver of 5.2a and drive them in parallel. The only difference is you dont loose all...