Use the Sky-Watcher AC/DC Power Adapter to power your 12 VDC GoTo mount from a 110 VAC wall outlet. The adapter converts the 110 VAC current into 12 VDC to safely run your mount. Simply insert the three-prong grounded plug into a wall outlet and then plug the mount's car/vehicle power cord into the adapter's 12 VDC socket. This is the ideal solution for backyard astronomers who don't want to drag out their portable battery packs to run their mounts when they have house power close by.