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 contact, offering versatile functionality for different applications. Stainless Steel Housing: Boasts a smooth and corrosion resistance, ensuring long-lasting quality and a sleek appearance. High Mechanical Durability: Designed for sensitive and extended service life, ensuring consistent performance and reliability over time. Compact and Lightweight: Easy to carry and disassemble, making it convenient for various installation and usage scenarios. Features: 1、IP65 protection level, good waterproof and dustproof performance. 2、4 Pin: 1NO, power supply positive and negative, 1 common. 3、Stainless steel housing, smooth , corrosion resistance. 4、High mechanical designed, sensitive and long service life. 5、Compact and lightweight, easy to carry and disassemble. 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