Need advice on my first COB build - parts list attached

as the title says, i need some help. before i pull the trigger on this setup i'm hoping more experienced members in this forum can spec out my shopping cart and advise me if if i'm doing something wrong. attached is a screenshot of what i have in the shopping cart.

i used this tool - not sure if others have seen it before. found it on ledgardener.com

Its all adding up as far as I see. 119V driver , 3x 38v Veros.............that is a 3 in the Cob quantity right?

Chip Green said:

Its all adding up as far as I see. 119V driver , 3x 38v Veros.............that is a 3 in the Cob quantity right?

Click to expand...

yeah, 3 of them.

Should work just fine. Any reason you didn't choose the 'B' version of the driver. I run the same combo w/ the 320 driver but with 4 on the bar and it is BRIGHT. The arrays run right at 80W and with minimal ambient airflow the sinks are @ 100 degF. Dialed back to 40-50W gives quite a bit of light.

GBAUTO said:

Should work just fine. Any reason you didn't choose the 'B' version of the driver. I run the same combo w/ the 320 driver but with 4 on the bar and it is BRIGHT. The arrays run right at 80W and with minimal ambient airflow the sinks are @ 100 degF. Dialed back to 40-50W gives quite a bit of light.

Click to expand...

thank you for the feedback, figuring out the driver/chip was the most intimidating part. i'm leaning A driver for simplicity. my quantum boards run on an A driver and i've been content with using an eyeglass screwdriver to dim it up and down. i have my lights plugged into a kill-a-watt so i use that to monitor volts, watts, amps, etc. any advantages to a B, other than being able to have a separate knob to dim?

The 'a' dim to 50%, the 'b' dims to 10%. I am also hesitant to rely on the durability of the internal pot for repeated use-others have posted failures.