Refer to this thread, my post at the end will point you in the right direction:

viewtopic.php?f=27&t=1073

I'd advise going for a B50K / B503 pot

I've seen you mentioning the upowertek drivers, Futuregrow, but didn't see an easy USA distribution around. You in Europe or Asia? I've been buying them directly off the factory and had them ship to me, I'm not based in the USA though. Their customer service is excellent however. If you're ok with ...

For what it's worth, depending on your growing style, medium, and available room... You should consider whether you need to control your plant structure and stretch when you flower. A supplementary channel or two of blue and red, permitting you to dim either, will help reduce your plant stretch in t...

I've got one of these BLD-120 running my test fixture. In my case it needs slight dimming to 2700mA to be within voltage spec (though it works anyway), but it could run atreum's board too, as it's rated to 57 V when output current is at 2100mA.

Just to expand on this potentiometer knowledge, pots tend to have two common marking code conventions to identify them by, as follows: e.g. a 100kohm pot would either be known as B100K, or B104, both referring to the same thing. The B means linear taper, 100K means 100kohm, and 104 means 10ohm x 10^...

From the looks of the board it has a 18s 16p layout, which at a forward voltage of 2.85 (a nice middling voltage in the top bin) would put the board's voltage at 51.3 V. Maybe the specifications have been very slightly overstated because it doesn't come with a driver, and Atreum want people to make ...

Nice looking light! Hey I hate to be that guy but.... is that a faulty diode?

What is the size of this light? Cheers

Went out and got another few pics from my test luminaire. Excuse the bits of dust, this light sits around to show people and mess about with. The rest of the PCBs are all securely double packaged away in individual bags and will only be removed upon assembly for shipping after sale. You can clearly ...

Really nice product, I like it. I came across your site just the other day actually, I was wondering how long you'd been around for.

Excellent square form factor, beats rectangles any day. Best of luck with business!