Question

the most common size wire used for light and power installations range from _________. lighting fixture wires are frequently size #16 or #18 awg, and low - voltage control wiring sometimes drops down to size #22 awg. sec ref 2.1.0 #14 to #6 awg 4/0 to #14 awg #12 to #6 awg 1/0 to #12 awg

Explanation:

In electrical installations, the most common wire sizes for light and power range from #14 to #6 AWG. This is based on typical industry - standard usage for such installations.

Answer:

#14 to #6 AWG