Abstract: A device which can be set to start a light flashing unattended at a predetermined time. The device includes a light and a battery, together with a small electronic clock. The clock has a display for displaying a time, a memory for holding a settable alarm time, and alarm output terminals for outputting a signal at a pre-established time stored in the memory. An electronic control circuit receives the signal from the clock at the pre-established time, and causes the light to begin flashing at that time. In the embodiment shown here, the control circuit flashes the light for a predetermined time, and then turns the light off. In this embodiment the device includes a casing, and a switch mounted in the casing and electrically connected between the battery and the light. By this switch, the light can be turned on and off in a manner generally conventional for a flashlight.