1.Universal fit all 12V Car SUV truck conversion Van RV Boat Yatch. </br>2.It can be applied as the switches for the additional electronical equipment inside&outside the car. </br>3.Easy setup. All you need is a 0.74"/19mm hole and the switch will sit in nicely. </br>4.LED on all the time or only when switch is on(depending how you wire it) </br> </br> <b>Package Include:</b> </br> </br>1 X 19mm LED Switch </br>1 X Switch Plug