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I've gotten a WS2812 strip working well, thanks to some of the postings here. Bought a 5V 10A power supply to run it.
Now I want to join 3 one meter strips (144 pixels each), using one data line, but separate power supplies to each strip. Looking at power requirements, I need to have about 8.6 amps available per strip, to handle when all or most of the pixels light up.
When I do the math, that adds up to a total of 25+ amps. I doubt that my home's circuits would handle that, as it has only 15A and 20A circuits.
Could run a couple of extension cords to tap other circuits in the house, so I can see if it works. But that's not a good long-term solution, especially if I want to throw it all in the truck and go show off somewhere.
Any ideas out there?
Thanks.
John
Hi John,
this might be helpful for your calculation;
For the LEDs we use (for example) a 5V 10A power supply. Since Watt = Voltage x Amps, this would theoretically use 50 Watts.
Now translated back to your (I assume) 110V power outlets, the load would 50 Watts. 50 Watts divided by 110V would be about 0.5 A on the power outlet.
Your home circuits will there for be just fine. 
