This is an intelligent light-controlled night light, which will keep on at dark and will automatically go out at dawn. Its light control is sensitive, the design is reasonable, and it is safe to plug and use. It is suitable for corridors, leisure and entertainment places, corridors, hotel rooms, hotel lobbies, exhibition halls, home places, etc. 3 1/8"L x 3 x 1/8"W x 15/16"H