LiteZupp Industries, LLC LED Lamps use State of the Art LED's to assure that you are getting a BRIGHT Green LED Lamp for dash applications. You will find that these lamps produce more light than the incandescent lamps they replace and run much cooler. The Screw Base lamps have a connection in the center of the base for a negative 12 volt connection. Some Dash applications have a green plastic filter which prevents the lamp from going in all the way. The plastic filters need to be removed. LiteZupp lamps are guaranteed for 2 years from the purchase date against failure due to materials and workmanship. Price is for two LEDs.