Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament. Incandescent light bulbs usually contain a stem or glass mount anchored to the bulb's base that allows the electrical contacts to run through the envelope without air or gas leaks. <answer>Small wires embedded in the stem in turn support the filament and its lead wires</answer>.
What function do small wires in a light bulb's stem perform?
Small wires embedded in the stem in turn support the filament and its lead wires