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why those multichips at all? are there any superb Reviews? looking at their budboss, 600$ for 340W...id just think, going all White Arrays, maybe mixed in some red Arrays u would get 500W including Drivers for 220$ and had left 380$ (or 450$ if u wanted 340W) for a heatsink, fans, screws, wire...

what I was saying AS5 8,9; momentive: 0,84 how are These numbers Close ?

oppsss and now for months i thought those r cobs :-( one Thing i know for sure, they hurt my eyes and thats supposedly a good Thing ;-) whats ur experience? im just seeing ur grow in ur signature but its freaking 47 pages :-( did it not work as good as hoped for?

or not? for me thats factor 10 better

not really, just look at some arctic silver and compare...those r like 10times more conductive. In their defense they dont really compare it to thermal compound, just adhesive. Other than that it sounds really nice. Have you found Reviews for that stuff? If it works -nice, but a cob is not a...

if you type cob led/ chip on board in Google... make sure its a constant current Driver and the constant current fits to your led -must not be higher than allowed. Its pretty easy. But as those cobs/ led cree Arrays produce a lot of heat etc you Need to make sure they are very tight on the...

id imagine the cheap cob could be even more efficient, as it consists of like 50x 1W smaller Chips clustered together...but ist more of a Blackbox regarding spectrum, longterm stability etc...you should look for other sellers that sell those and fetch their data, if they provide more. I went for...

http://www.ebay.com/itm/380717150104?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 if u dont Need Ultra Efficiency and cree and whats not

or take a look at IDE power connectors (those which you put in your cdrom drive or harddrive), im using them too,since i got 11drivers and that motherboardconnector only gives 10 channels, and i Need to connect my heatsink fans aswell. Gives you "2 channels" per Piece (2x +, 2x-). What do you...

idk whats better, i went for a lot of ac-dc Drivers (11 pieces lol). If you search voltage drop calculator on Google, u can put in your specs and get the result....I think putting the Drivers at a distance is a good idea, i dont want to be near the mains...i suggest you think about some sort of...

depends on what you want, im building a true 360W Panel with cheap 30W cobs and 3W for like 210$, if I had used cobs only it would be 170$ for 360W including Heatsink and fans etc...but no Hightech cree efficient cree there, but on the other Hand cobs r pretty efficient, even if they r chinese...

Those pics Show 3 different plants, like the only leaf affected on each. 4x bagseed, 1x Skunk#1 all from seed, one plant i topped and made a clone, but its hidden below the other plants in the pic of my 2nd post.

Can you rule one out mag or cal? because i have espom salt...that i could use for mag, right? but that could be true too, if the roots were waterlogged, would the plants not be more droopy? but indeed its pretty cold 18-20°C...im building a 320W DIY led Panel, i had to salvage my old one for...

its in the datasheet: "overload: hiccup mode, recovers after faulty condition is removed" You can do that if you like this ;-) http://www.youtube.com/watch?v=DXGxPgOGqj8

Thx for your answers. Generally id say those are like the only leaves on those plants that Show something like that...but I want to counteract before it spreads. Soil is biobizz lightmix/allmix and nutes biobizz grow, im feeding like <half the suggested dose. Watering 1-2 times a week.

Hi, can you tell me if thats an Nitrogen deficiency or what is it? The pics are from 3 different plants, id guess since i treat them the same they should Show the same Problems.

I dont think so... overcurrent--->heat destroys them. I think they write e.g. 0-14A because it means you can run them when you have something consuming just low amounts of current...not every power supply is stable at low currents and requires a certain load to work properly. In simple: As...

the more the merrier

welcome to the jungle

woot making own pcbs...paid like 9,9$ to get 5x -> 5cmx5cm pcbs, 2 weeks including shipping..send from China, but great Quality, but Quality also depends on the layout and Routing skills ;-)