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not 100% sure of the Vf on your cobs at 1.4A but the HLG-185-C1400 by meanwell puts out 143V. not that spendy for the wattage either, ~.39 cents a watt for mine shipped, 93% on 115v, 94% on higher voltage lines.

the outer dimensions of the shell are 25.75x12.5x4.75 supra, i use an IR thermometer. ambient temp is 20-21C. the LES itself is usually only ~70-75C after two hours. when i measure the Tc point lights on, 30-33C. i may try measuring Vf, but i am thinking of picking up a bench power supply for...

my vero 29 runs at 30c at the Tc measurement point indicated in the PDF when running at 1880mA. is that normal for an alpine 11 plus or am i interpreting the data wrong and it is coming out extremely low? i am over driving the fan, using 500mA instead of 300mA, which is 66% overdrive, but i...

lookin' really nice bro!

you also can't talk about the efficiency of emitters unless you're discussing the drivers running them. if you're looking to run at ~360w, check out two of the hlg 185H-c, 94% efficient at full load if you're running 220v power. figure in all the costs for all the wattage losses and the...

gives you a good idea of the real spread of the light though.

now the fun begins that's 20 of the 24 4k vero 18s. the other 4 are taped to the other side. and the floodlight i have ordered

when you're comparing the cost of a reusable plastic pot to a throwaway fabric container like the root-trapperII, the long term cost of replacing the fabric bags outweighs the short term lower investment to me. while i like higher capacity containers, it means i have to mix more medium as...

garden looks awesome bro, congrats on your latest pull. you should check out root makers pots if you like air pruning. http://www.rootmaker.com/retail_products.php?Pageload=2#top same thing as a smart pot but injection molded plastic and they don't lose medium like those air pots. they come...

those look pretty chunky, good job! nice to see the cob tech is solid enough to grow, even with monochromes. what are your plans with this light?

just remember, what you say could come back as backlash against her. you never know when he's secretly abusive or some other bullshit like that. it's a lot easier to catch a fly with sugar than salt. if he figures out you grow, it could also mean compliance checks and other shit you don't...

jesus, when are you guys gonna stop growing schwag... o_O the cartels are gonna be mad, y'all steppin' on their game! but really though, shit looks fire bro. sucks about the calcium problem, ever tried soaking eggshells in vinegar? my mom was having problems with blossom end rot on her tomatoes...

my heart goes out to your family, i know that can be a difficult situation to deal with. hopefully some of these awesome lookin' meds can brighten their days when you finish up.

everything looks great! i was more concerned with making sure you knew proper technique for a scrog than criticizing. :) obviously you're onto something here, super low PPM and that degree of health is a really good sign!

If you want to run 35w emittance per square foot, you would use 16 cxa 3070 at 52w

5x5 with 9 cxas would mean each cxa occupies a 20"x20" space.

trying to keep light color definitions straight in this instance seems to be difficult lol. that is because definitions seem to vary depending on source, but in my physics classes, we considered anything over 700nm infrared. when you wiki "red" it lists red as 620-740nm. far-red is listed as...

Holy shit 22 days!

Our Blue moonshine is in my top 5 ever.

nothing special, just micro pore tape over the holes in the handle and a ceiling fan on low.