The DIALIGHT 812-0975 is a robust panel mount indicator designed for industrial applications requiring visual signaling. It features a press-to-test mechanism for easy activation and a durable construction with a black anodized aluminum base and a high-impact plastic cap. Compatible with both incandescent lamps and based LEDs, this indicator provides reliable performance in demanding environments. Dialight recommends transparent lens caps for Based LEDs and clear lens caps for Green Based LEDs.