Brand: Parts Express. MPN: 060-123. Use this raised push button N.O. momentary switch in multiple applications. It has a built-in blue LED that works perfect as an external Bluetooth status light and the push button for resetting Bluetooth pairing in KAB boards. Key Features Built-in 3V blue LED for low lit areas and connection identification Easily mounts in a 5/8 hole with included shaft nut 0.110 crimp/solder terminals for easy installation + and - symbols on the switch body for polarity identification for the built-in LED Overview SPST 3V Blue Illuminated Push Button NO Momentary Switch Rated 125V 3A 16mm This switch has a built-in 3V blue LED light for locating in low lit areas. Wire the light to come on only when pushing the button or have it stay on all the time. Check out the wiring diagram attached for further information. Add a 390 ohm resistor for 12V or 5.6K resistor for 120V applications. If you want to eliminate and extra hole in your KAB audio project install this switch instead of the external Bluetooth LED and the Bluetooth reset button. The output of the KAB external Bluetooth LED socket is 3 VDC and observe the polarity. Specifications: Contact: SPST N.O. momentary Current rating: 3A @ 125 VAC 1.5A @ 250 VAC Blue LED voltage: 3V without any resistor Blue LED current draw: 8 mA Switch total size with button raised without terminals: 0.96 L x 0.7 Dia. Thread dimensions: 0.62 Dia. x 0.5 L Button size: 0.5 Dia. 4 terminals dimensions: 0.08 W x 0.22 L x 0.02 D.