Wake up to the time projected in large digits on your wall or ceiling with the AcuRite Projection Clock The alarm clock features an easy-to-read backlit screen with time month date day of week and indoor temperature a loud alarm clock and snooze button The atomic clock and calendar are radio-controlled to maintain the correct time and date with split-second precision and automatically adjust for daylight saving time DSTProjection Clock Features. Projects the time on the ceiling or wall. Focus adjustment dial for a crystal clear projection. 180 degree projector rotation with flip image feature for versatile viewing angles. Indoor temperature F or C. Atomic clock. Atomic calendar monthdayday of week. Automatically adjusts for Daylight Saving Time DST. Radio-controlled clock maintains accuracy to the split second. Loud audible alarm clock. Snooze button. Bright blue backlight. Electric-power with battery backup in case of power failure. Projection Clock Includes Projection clock AC power adapter instruction manual. Alarm Clock Dimensions 36 H x 51 W x 125 D. Indoor Temperature Range 32 to 122 F 0 C to 50 C. Alarm Clock Power 45V AC adapter included or 3 AA alkaline batteries not included. Power Adapter Voltage 45V Current 200mA ULCUL E149533 CEC Yes