Axiom Home Page Forums General Discussion The Water Cooler Low power wiring for LED applications

i think that double or half the current capacity is a difference of 3 gauge numbers: from 18 to 21 is half, and vice versa.
the reason is we can't use the wire diameter, it's the surface area of the wire ends that counts.
doubling the wire diameter is 4 times the surface area and 4 times the current capacity.
two 24 gauge wires in parallel is equivalant to one 21 gauge wire.