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hi people im just about to buy some LED PCB boards from china and was wondering if i can save some money on the shipping costs ordering the heavier parts like drivers and heatsink from Europe. For the drivers i found some sites with free shipping cost in EU but im still on the search for the...

hey peeps. im just thinking about building my own LED i was thinking about running 4x BXRC-35E10K0-L-2x - (vero29 3500K 80cri 38volt ) with this driver http://www.mouser.de/ProductDetail/Mean-Well/HLG-320H-C2100B/?qs=sGAEpiMZZMvV8Y9YugmIgoiQo72DSvhvnkM%2b9Br076iqXRwltqFxUA== at 2,1A. if i...

hi does somebody have experience in using fulvic acid as ph down in dwc ? i am thinking about cutting out the phosphoric and using fulvic acid instead.

Hi. What are your experiences with coco coir when watering it every or every other day ? Will the ph in the medium in general rise or decrease when watering always with the same ph adjusted water ?

Hi im growing on coco. my tap water : 8.05 ph 110-120 ppm EC KH 4 ( aquarium test kit.. KH in the sense of Alkalinity.) GH 6-7 if i add tnt complex 2ml/l ph goes down to 7 , kh stays ca the same.EC goes up to 210 ppm. If i add bionova ph minus to the water till i get a Ph of 5.8-5.9 i get a...