Orion 2.1 Amp AC-to-12V DC Power Adapter Power your Orion Atlas EQ-G, Sirius EQ-G, or SkyView Pro GoTo telescope mount from a household 110-volt outlet with this handy adapter Can also provide power to Orion motorized XTg and XXg GoTo Dobsonian telescopes Also compatible with Orion StarShoot G3 Deep Space Imaging Cameras, Orion StarSeeker III GoTo telescopes, and Orion StarSeeker IV GoTo telescopes and mounts Converts 110-volt AC power to 12-volt DC power with a maximum output of 2.1 amps Eliminates the need for external battery so you'll never lose power during an observing or astrophotography session