Square D (Schneider Electric) ZB6AV4 Indicator Or Pilot Light. Schneider Electric Harmony™ Pilot Light Head Round Series: ZB6 16 mm LED Lamp Bezel/Housing: Plastic NEMA 4/4X/13/IP65 -13 to 158 deg F Red. Additional Description: SQD -ZB6AV4 16MM PILOT LT 65168-007. Catalog Description: Schneider Electric16MM PILOT LT 65168-00716mmHarmony XB6NEMA 4X conforming to UL 50-NEMA 4 conforming to UL 50-NEMA 13 conforming to UL 50-NEMA 13 conforming to CSA C22.2 No 94-NEMA 4X conforming to CSA C22.2 No 94-NEMA 4 conforming to CSA C22.2 No 94RedStandard LensUL CSA CEZB6integral LEDhead for pilot lightplasticround.