Fangrui Product Details Led Illuminated Switch: The Led Indicator On The Push Button Switch Will Illuminate When You Press The Switch To On Status, And Led Remain Off When The Switch Is In Off Status. Mounting Hole Size For The Switch Is 12mm 1/2inch, Durable For A Longer Lifetime. Easy Installation: Each Switch Is Pre-wired With The Soldered Wiring Harness, Convenient For Connect The Accessories Or Equipments. Round Latching Switch With Screw Clamp Type Terminals To Make Fitting Very Easy,multi-type Wire Connection. Lifetime Can Up To 500,000 Cycles, Durable And Antirust. Wide Application: Our Switch Can Be Used As A Switch For Various Additional Electric Equipment, Inside And Outside The Car. Ac Or Dc Enviroment. It Is Widely Used To Control Leds And Circuits On Car, Rv, Marine Boats, Trucks, Households, Coffee Machine, Industrial Equipment. Suitable For Almost Any Motorized Vehicle Of Motor Starting, Power Starting Devices, And Can Also Be An Access Control Button. Ip67 Waterproof Rating: This Self-locking Push Button Switch