Function: 1. Made of high-quality stainless steel, the metal push button switch is durable and rust-proof. 2. The push button switch is waterproof, so it can be used in a humid environment. 3. Designed with two wiring terminals, the push button switch is easy to install and replace. 4 . The switch has good contact performance, which can ensure stable operation. 5 . Product contact structure is normally open button, no light and round flat head. Specification : Item Type: Metal Push Button Switch Material : Stainless steel Working voltage: 220v 3C rated voltage range: 36V and below Installation Size: Approx. 16 mm / 0.6 inch Contact structure: normally open button Light source type: no light Reset method: self-reset Protection method: waterproof Button head style: round head Working position: button head Package List: 1 x metal push button switch