Momentary pushbutton switches may be used in a variety of applications including cars, motorcycles, boats, computers, LEDs, and electronics projects. Use them as a power switch for your computer, a boat horn or starter switches for cars, trucks and other automobiles This switch has a protection rating of IP67 waterproof, meaning it can withstand exposure to heavy rain, splashes, etc., without damage The switch and LED are separate. The LED can be on all the time or only when the button is pressed Installation: Cut mounting hole into the panel using a 5/8' drill bit. Screw the threaded 'neck' of the switch into the panel cutout hole and secure it on the reverse side of the panel with the included metal nut.