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if this is your driver; https://www.mouser.co.uk/ProductDetail/Mean-Well/HLG-120H-48A/?qs=3IPTn0w%2f0t9sUftTDRPlEQ== It outputs 120w total also if your cob's are 50v they will probably work at 48v but its advisable to get slightly higher voltage than rated as long as your driver is 'constant...

Hi spence, without spending hours looking up each of your components it is impossible to asses if they are appropriate, if you could get the spec's from their spec sheets or post links to same, i'll gladly look over your selection. Your 20 x 36 space will be approx 5 sq ft so you will want to...

Could try a slow cure silicone, the quick ones lack adhesion but a good thick schmoo of the slow cure shite would seal yer end plugs in and be dismantleable with nowt more than a craft knife in future.

yeah at a low simmer with a tight fitting lid, most of it is there at the end.

I use one of these too; https://www.ebay.co.uk/itm/Quality-1-5-Litre-Aluminium-Fruit-Press/311021781963?hash=item486a57c3cb:g:52sAAOSwEK9Tz4rP expensive if you only make the odd small batch but awesome if you are working with kilos.

30 mins dry decarb @80-100C then 100g of trim to 500g of coco butter, heated with a teaspoon of water which boils and acts as a thermometer, heated @ 80-100c in just the oil for 30 mins then 1 litre of water added and simmered @ 80-90c for 2-16 hrs I aim for 16. This gives a decent half teaspoon...

Copper is a good conductor but ally is better at dissipation, some cpu coolers use a copper plug in the middle of ally fins for the best of both worlds. CPU's have a heat output of around 100w's those cobs were approx 40w @ about 50% total thermal efficiency giving us 20w of heat to dissipate...

look on fleabay in the pc section, you will often find listings for boxes of second hand cpu heatsinks with fans, most cpu's put out around 100w of heat so just about any cpu cooler will be more than adequate to sink one of Cobkits 40w cobs, they usually go for pennies. As far as conversion, I...

Fuckin top man!!!! yer a super star @CobKits this is wot makes growin weed different from any other goddamn capitalist shite; feeling! :weed:

For that space with that sorta ceiling height I'd go vero 29's all the way, you will have so many point sources of light to cover that sorta space you are gonna need to bring out the big guns; gen 7 vero 29se's @ 72v which other than a few of the QB's will give your best lum/buck currently.

Hang em high if you do, if the plants start to stretch then lower em but i'd just hang em from the top of the tent and leave em there unless the plants say otherwise. You may have heat issues with that many watts going into such a confined area.

Can you find a link to the lights spec anywhere? Is no good going by 'wattages' as a lot of led suppliers give these as 'hps equivalent' and tell you fuckall about the actual amount of light they put out.

Top post m8, I've been looking for a basic 'kitchen sink' test for ages. Made all the more annoying by having not troubled my lad coz his degree/phd lab work took all his time, he published his thesis this month and has decided 8 yrs in the lab is quite enough and he's looking to work in bloody...

Parallel or series? I'm guessing parallel, in which case you probably had one cob fail pushing the circuit amps to the remaining ones, over stressing them. When using parallel wiring ensure your off load voltage is not too far over your rated voltage for your desired drive current. You can get...

Can I suggest this assumption of too many amps is proven to be faulty thinking when it comes to semiconductors. I've no direct data to base this on as I tend to stick with parallel and rated volts and amps but the fact this cob stood being hooked up to 36v @ 8A would suggest I am right in...

Sorry guys, i ferget that site even exists! I never meant 'that uk420' I meant THIS uk420; Bunch of my lad's mates the other year. :bigjoint:

Ahhh, the simple pleasures in life are the best...... like takin a piss and NOT screaming like a little girl! Big up da uk420 still growin in the face of tyranny :bigjoint:

I grow some of the best shit in the biggest town too! Not found anyone claiming to have smoked any better, if I were growing for weight, I might want more lum/sq ft but I don't sell my medicine tho everyone asks if i do!

OK well one is outta stock, the other two are identical specs but are listed as different part numbers because one has wire leads the other has through hole pins, thats the difference, you probably wanna go with the soft wire version; 317-1000-ND

I feel ya, I'd personally keep the vero 18's and either add more of the same or mix 29's and 18's, I have a mix of single 29's here and luxeon 1211's which more or less match your 18's for general character. I see better results from the girls under the multiple 40w cobs than the single 29's and...