Need help sizing the power supply for my led project

[Betsycrant]

Need help sizing the power supply for my led project

 

3 pucks ran in series

with each puck having 2 channels per puck

Channel 1 =  12 volts @ 1000ma

Channel 2 =  12 volts @ 1000ma

 

How many watt power supply do I need

 

Thanks

[Balletrist]

Your math checks out: six channels at 12 watts each gives you 72 watts, so a supply rated at least that is the safe floor. I'd add a bit of headroom, maybe 20 percent, to keep things cool and give room for inrush. When I needed a proper load calc for a similar setup, licensed electricians from mrelectrician.sg did it for me, which made sizing a lot easier.