aluminum

Hi guys, I'm looking for input on my "seed box" I planted 4 mixed seeds in there, do you think it's ok for a week or two of growth? The CFL is a 14w 5000k on a timer that goes from 7:30 AM to 1:30 AM every day

So, I've been thinking about putting together my own DIY QB light and have run into the heatsink part of the design. I'm looking to run (3) 288 V2 (HLG 240H 54A), in parellel, in a 2'x4' tent, and would like to mount them all on one plate. Has anyone ever tried an aluminium sports bleacher...

So i finally made the order and got 20 2ft eb strips. Now for the aluminum. I found a bunch (for a steep price) but they are all soo damn flimsy. Im gonna have to order some. So my question is how thick should the 2 ft flat aluminum bars be? I dont wanna get something super thick but i also...

I'm creating a 4-COB led (4 x cxb3590) aluminum frame for my grow tent size, which is 75x60x170cm (or about 2 by 2.5 feet). Is my rectangular structure of 45x36cm (ratio 5:4, to match the tent's ratio) the better choice? Or is it better to make this square? I will probably extend the left and...