Garmin Compatible Cigarette Lighter Power Adapter for Etrex Venture, Legend , Vista (Excluding Cx Series) Emap, Geko GPS Receivers Fully compatible with Garmin eTrex (Legend, Vista, etc.), eMap, and Geko 201, 301 GPS units. Durable - Molded from end to end for durability and safety. Approximately 6 ft. long. Includes a green "Power On" LED. Converts 12vdc to 3vdc for Garmin eTrex Series