12V is too high for your LEDs, you still have the power supply. 12 volts is not near enough voltage for a house. You can get around it with very big wires but copper is extremely expensive. Even in cars, 12 volts is borderline. Trucks are fairly often go to 24 or higher voltage because even at the size of a large truck (semi), higher voltage is an advantage.
Well, we can certainly argue with 110 or 220 is a better voltage for a house. It is quite clear that 12 volts is too low.
Well, we can certainly argue with 110 or 220 is a better voltage for a house. It is quite clear that 12 volts is too low.