Review on ESUPPORT 16mm 12V 3A Car Purple LED Light Power Metal Push 🚗 Button Toggle Switch Socket Plug Latching Black Shell: Illuminating Control for Automotive Applications by Cre Soto

YELLOW WIRE: Not needed. RED-BLUE WIRE: Twist for the accessory you want. And so that the blue LED also lights up when you press the button. Or twist red and green together and the LED will always be on! GREEN WIRE: positive (+)! and BLACK WIRE is grounded (-), I took a little test, but I understand! Will buy more. And The Switch is the size of a penny! This way you can mark where you will place and buy b4! Hope this helps you!