This Schneider Electric Harmony 9001SK push-to-test illuminated red pilot light with integral LED and plastic fresnel is supplied with 110 Vac/dc. It fits in a 30mm hole. It has a plastic bezel. This illuminated red push-to-test pilot light with integral LED provides an ergonomic and visual interface for your machines. It is easily installed into a standard 30mm diameter panel cut-outs and connected to control circuits with classic screw-clamp connections. It is clearly distinguishable visually at a distance thanks to its illuminated head and clear color. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, making it ideal for operation in harsh environments.