The versatile Evadale 3-in1 Night Light operates as an automatic night light; a backup light in the event of a power failure; and a rechargeable torch. Plugs directly into a standard wall outlet and offers up to 100,000 hours lifespan. automatic night light – when plugged into wall socket, light automatically turns on at dusk and off at dawn power failure backup – constantly recharges battery for emergency light during power failure rechargeable torch – super bright long life white LED with eight hour lifespan