Features IP65 Protection Level: Ensures excellent waterproof and dustproof performance, providing durability and reliability in various environments. 4 Pin Design: Features 1 normally open contact, positive and negative power supply, and 1 common pin, offering versatile connectivity options for different circuit configurations. Stainless Steel Housing: Boasts a corrosion-resistant and smooth surface, guaranteeing long-lasting quality and aesthetic appeal. High Mechanical Durability: Delivers sensitive operation and an extended service life, ensuring consistent performance and reliability. Compact and Lightweight: Easy to carry and disassemble, making it convenient for various applications and installations. Specification: Item Type: Push Button Switch Installation Diameter: Approx. 22mm / 0.9in Rated Voltage: 3-6VDC Emitting Color: Red, Green, Yellow, Blue, White (Optional) Contact Structure: 1NO Shell Material: Stainless Steel Package List: 2 x Push Button Switch Package List 2 x Push Button Switch