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Franzus by Conair Travel Smart Deluxe Analog Travel Alarm Clock TS114AC features:

Auto light sensor turns light on when it detects darkness

Light will last over 2400 hours using one AA batter (not included)

Quartz accuracy and 5-minute snooze with unlimited repeats

Dimensions when closed: 3.75 x 2.5 x 1"

Dimensions when open: 5.75 x 2.5 x 1"