About the product: The Push Button Switch is Latching type, 1NO contact, 4 terminals switch, fits for 12mm diameter mounting hole, and is widely used for power button switch, LED switch, DIY projects or any circuit controls.Good Choice for you:•This switch is made of sturdy material with copper nickel plating, good performance, durable in use for a long service time.•Distinctive and superior design, and with structural support to provide extra rigidity.Specification:Total Size: 21 x 16mm/0.83in x 0.63in(L*Max.W)Mounting Hole Dia: 12mm / 0.47";(Rated) Voltage & Current: AC250V 2A;Lamp Voltage: 3-6VAC/DC;Light Color: Blue;In the package of: 1pcs x Push Button Switch.Easy to install:The push button switch is easy to install and does not require particularly complicated operations.Tips: Before installation, please make sure to turn off the switch.