I have a similar setup, but the external is 12v. I dont connect 12v+ to the chips at all, only through the leds and then into the chips. I power them with arduino 5v. They work fine
I have a similar setup, but the external is 12v. I dont connect 12v+ to the chips at all, only through the leds and then into the chips. I power them with arduino 5v. They work fine