Descriptions:Latching type, 1NO 1NC contact, 4 terminals.This metal push button switch is suitable for 22mm diameter mounting hole.Used widely: Great for Power Button Switch, Led Switch, DIY projects or any circuit controls. Specification:Item Name: Push Button SwitchAction Type: Latching TypeHead Shape: High HeadContact: 1NO 1NC Switch Rating: 250V 3ASwitch Color: Silver ToneLamp Voltage: no light includePin Number: 4Thread Diameter: 22mm / 0.86inTotal Size: 46.5 x 28mm (H*D)Material: Copper Chrome PlatingPackage Content:1 x Push Button Switch