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Hey @Moflow, how about the board you got from R2T? Are they any good?

Thanks- waiting to see what Meijiu offer- was thinking A type drivers because of the possibility to regulate voltage, if I'm not mistaken? Also, I plan to run the 312 @60-70W (minimum wattage iirc).

Hi, was busy with other things so just completed all the maths and about to order 2xfotop800@3000k + 2xfoled312@3500k and 2xfoled312@4000k in the end. The goal is to have flexibility as I'm thinking of having a smaller veg/clone area. In terms of drivers, as I want to run everything low power...

OK, thanks- that's not too high!

Do anyone know the forward voltage of Fotop 800 and Foled 312?

4x4 tent. I made the calculations and everything normally fits. Trying to get as much coverage as possible and running the boards low. Yes, 312 are the same size at 304, so 1/5 of Fotop. Still making the maths on the drivers, and looking at constant current/series wiring now. I chose the 312...

So, did my maths! :) End up thinking to get 2*FOTOP 800 (@3000K) + 6-8*FOLED 312 (probably mixing 2700K, 3000K and 4000K) - should be plenty of light (3472 leds) and doable without heatsink (FOTOP@180W, FOLED@60W). Or 304s instead of 312... Thinking 1xHLG-480H-48 for the FOTOP and 2xHLG-320-36...

USD- yes, everything is included at that price, driver, heatsinks, dimmer...

Thanks a lot for your replies, sums it up nicely! I guess I was a bit edgy about running the boards without heatsink. Doing the maths again :)

OK, thanks, that's the information I needed!

Hi guys, I'm setting up for a 4x4 and hesitating between 4*288 LM301b (305$) or 2*800 LM561c boards (378$ - both from Meijiu). I've read a lot about LEDs, but still can't make up my mind! Shipping costs slightly more expensive in the case of LM561c boards... Any pointers?

What’s the seller?