This is a popular new look in SPST toggle switches. The handle is black and tipped with a red, green or blue LED (draws only 20ma) that lights when the switch is turned on. This switch is designed for use at automotive (12-14V DC) voltages. Rated 30 amps. Fits in a 1/2 inch mounting hole. This is an ON/OFF switch. It has three .250 inch quick disconnect terminals. Wiring is as follows: Terminal 1 is 12VDC positive (from battery). Terminal 2 is 12VDC positive (to the motor, light or whatever you are turning on and off). Terminal 3: Ground (to battery ground - needed for the LED on light to work). MF893.