DetailsSave batteries and power your Garmin eTrex GPS from standard 12 V cigarette lighter receptacles. Gilsson GPS cables are produced using the highest UL-certified materials and components. Each component is custom manufactured to ensure a perfect fit with Garmin GPS units. Approximately six feet long. Includes a green power on LED. Compatible with Garmin eTrex, eMap, and Geko 201, 301 GPS units.