1pc AC30-500V Voltmeter Panel LED Digital Display 22mm RED and GREEN LED‑Round is a compact, high‑visibility AC voltage indicator designed for seamless integration into electrical panels, machines, control boxes, and power systems. The dual‑color (red and green) LED provides instant visual confirmation of voltage presence, enhancing safety and operational efficiency in a wide range of industrial and hobbyist applications.

Specifications

• Model: AD16-22DS / AD16-16C


• Light source: LED highlight


• Installation aperture: 22 mm (red/green) / 16 mm (optional)


• Color options: Red, Yellow, Blue, Green, White


• Connection mode: Screw connection


• Rated current: ≤ 20 mA


• Insulation resistance: ≥ 2 MΩ


• Frequency withstand voltage: 2.5 kV for 1 min


• High brightness: ≥ 100 cd


• Recognition degree: ≥ 98 %


• Voltage range: AC 30 V – 500 V


• Display size: 22 mm round LED

Typical Applications

• Electrical distribution panels


• Industrial machinery control cabinets


• Power system monitoring units


• Arduino and other micro‑controller projects


• Automation and PLC interfaces


• Safety and status indication in equipment housings