Orion 2 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 Can also provide power to Orion motorized XTg and XXg GoTo Dobsonian telescopes Also compatible with Orion Parsec 8300C and 8300M Astronomical Imaging Cameras and the Orion StarShoot Pro Deep Space Color astrophotography camera Converts 110-volt AC power to 12-volt DC power, maximum output of 2 amps Eliminates the need for external battery so you'll never lose power during an observing or astrophotography session