The installation of this kind of 16MM Metal Switches is 16mm, which is made of aluminum alloy, silicone, brass with gold plated,etc. Our Metal Switches has pass the IP67, PB, TUV, IK10 certificates and etc. The led color of our Metal Push Button Switch could be white, red, yellow, blue and the LED voltage is range from 3 VDC to 24 VDC. What’s more, we also have dual color led for our customers to choose from, it is red&green color. The body type of this Momentary Switch is made of AL alloy, which could be black and white color. The button type is round and the light type is power logo, which looks more fashionable. The terminal shape could be solder terminal or wire length 500mm. In addition, All casings of our Waterproof Push Button Switch are made through high-precision lathes, and the polishing and plating are rigorously screened. The metal fittings inside the metal switches are made of brass gold plated material, so the switch can have good con…