Marine Push Button Switch - Blue LED - 20A - Stainless Steel 

FEATURES:

• Rated for 20A
• Stainless Steel Housing - No Rust
• Simply remove the switch and rotate it 180° to change from "LED Always On" to "LED On When Pressed."
• 22mm (7/8") Diameter Button - Easier to Push Compared to 19mm
• 25mm (1") Outside Diameter
• Works on 12V or 24V Systems
• LED Backlit Ring in your Choice of Colors
• IP67 Rated - Waterproof
• Silky Smooth Movement
• Rated for 150,000 Cycles (Presses)
• Removable Clip for Wiring Harness
• 3ft of 14AWG Wiring for a Simple Installation
• Mounts in panels up to 3/8" thick
• Fits a 7/8" Hole
• Plash Limited Lifetime Warranty

WIRING:

• BLACK wire = Ground   
• RED wire = Positive V+
• BLUE wire = Ground
• BROWN wire = Positive V+ 

 There are many options when it comes to wiring configuration such as do you want the LED ring to be on all the time, only when the navigation lights are on, or only when the switch is pressed?  Depending on how you wire the switch, and the orientation of the switch, you can decide which function suits you best.