OUTAGE TIME AUTOMATIC SWITCHER FOR SECURITY LIGHT/STREET LIGHT

摘要

PROBLEM TO BE SOLVED: To provide a backup power supply automatic switcher against long outage of a security light/street light.SOLUTION: A system comprises: a controller 3 installed as an input apparatus; a storage battery 4; a solar panel 5; an outage time LED light 6 installed as an output apparatus; and an existing security light/street light 7. Control with the controller 3 makes the outage time LED light 6 turn on when power supply from a commercial power supply 1 stops in disasters or the like. Changeover to the system having power consumption lower than that of the existing lighting reduces power consumption and extends a backup period. The controller 3 makes changeover of lighting to the existing security light/street light instantly after the power supply from the commercial power supply is restored.