Try it see what happens... >:l
Can you splice them? Yes. Should you splice them? No.
It really all depends on what your over current protection is. If your #12 wire is on a 20 amp breaker, your #18 wire can melt and cause a fire without tripping the breaker. I do not know what is the amp rating of 18 gauge wire. -- Sparkfighter
Yes, you splice a small length of 16 gauge wire to 18 gauge wire for a repair.
The gauge of wire that is 12 volt is 18, 14, and 16.
The larger the gauge, the smaller the diameter. That makes 22 gauge wire not as thick as 18 gauge wire.
The lower the gauge the heavier, sheet metal, wire & shotguns...
NO, you must never mix wire sizes on the same circuit.
18 gauge wire is too small for this application. A more appropriate amount would be 12 or 14 gauge wire depending on the length of the run. <<>> The smallest allowable conductor the electrical code allows is size #14 which is rated at 15 amps.
Depends on what you intend to do with 18 gauge wire. Your question is very vague. You need to be more specific as to what you plan to do.
A good wire gauge for car radios is 18 gauge. This wire runs between the radio and its power supply from the vehicle.
16 or 18 gauge wire
The 12-gauge is thicker.
16 or 18 gauge