This is a perfect choice if you are in need of an illuminated latching pushbutton! These metal (nickel plated brass) latching pushbuttons are a very tough, small, panel-mount momentary switch with an illuminated blue LED ring in a IP67 packaging. It is a latching pushbutton (push once, push again to turn off) with 16mm threading. This button is perfect for advanced latching On/Off functions. Overall length (including leads) is 1.50" (38mm) and has small solder lugs for connection. These latching buttons are rated up to 3A at 250v AC. The internal blue LED has a forward voltage of 3.6v DC at 20mA.

For running the LED, you should run a series dropping resistor based on your supply voltage:

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