You are buying brand new  3-PIN MALE TO MALE ADAPTER. If you are trying to change your LED lamps from Trucklite or Peterson brands that have the 3 in-line wire pins to MAXXIMA LEDs, this is the pigtail you need to use for a easy on conversion. NO NEED TO CUT WIRES! You are also buying MAXXIMA quality, MAXXIMA customer support and the assurance that you will be enjoying your LED light for a long long time. If you are missing some MAXXIMA lights, or you're starting or finishing a lighting project requiring MAXXIMA LEDs, then you've come to the right place. We have an extensive inventory of the MAXXIMA line and will be more than likely to have the light that you need to finish up your project.