Indicator Light Voltmeter AD16-22DSV Round Shape

From the shop's description

Specifications: Model: AD16-22DSV Lens Material: PC Lighting Source: LED Lamp color: R-red, Y-yellow, G-green, W-white, B-blue Voltage : 60V — 500V Nature of supply: AC Continuous working life: Typically over 30,000 hours. Ambient temperature: -25°C + 55°C Frequency: AC 50-60Hz Mounting Thread Diameter: 22mm