This illuminated green push-to-test pilot light with integral LED provides an ergonomic and visual interface for your machines,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, making it ideal for operation in harsh environments,It is easily installed into a standard 30mm diameter panel cut-outs,High performance International standards & certifications (Marine ABS certification, IP66, Type 1, 2, 3, 3R, 4, 6, 12 and 13)