Features 1、The protection grade is IP65, the product will not be easily damaged 2、Adopt stainless steel shell with high-end appearance and good touch 3、The contact structure uses 1NO method which can make sure stable performance 4、The mounting diameter is 19mm for easy installation and removal 5、Available in five colors for choice: Red, Green, Yellow, Blue, White Specification Item Type: Push Button Switch Installation Diameter: 19mm Rated Voltage: 12-24VDC Emitting Color: Red, Green, Yellow, Blue, White(optional) Contact Structure: 1NO Shell Material: Stainless Steel Size: Approx. 27 x 19mm / 1.1 x 0.7in 4 Pin: 1NO, positive and negative pole of power lamp, 1 common end Package List 2 x Push Button Switch