Get the most out of your nighttime skywatching with the Celestron AC Adapter for Computerized Celestron Telescopes. This AC adapter is a plug-in power source for all of Celestron's NexStar equipped telescopes, as well as Celestar 8, Ultima 2000, CI 700, CGE, SLT, and Advanced series scopes. The adapter transforms standard, 110-volt, AC house current to 12 volts DC, eliminating the need for batteries. Output is rated at 2.5 amperes. For use with all Celestron computerized telescopes Transforms 110-volt current into 12 DC volts 6-foot cord offers mobility 2.5-ampere rating Eliminates the need for batteries