IDEC APW1126-W TW Series Pilot Light – 22mm, White, 120V AC Transformer Type, Octagonal Bezel

The APW1126-W uses a step-down transformer circuit to convert 120V AC line voltage to a lower operating voltage for the lamp. This design provides superior electrical isolation and helps protect the lamp from transient voltage spikes. While many modern installations use the LED-integrated version (APW1126D-W), the base APW series is often used in existing panels for exact maintenance matching.