Sirius Arthur Lantern Black. Spread a cosy atmosphere with this indoor/outdoor lantern, including a light chain with 40 LED lights. The lights are wrapped around a metal spiral creating a beautiful light effect. The string light is battery-operated and has a built-in timer function. If you don’t turn off the lights yourself, they will turn off automatically after 6 hours). After 18 hours, the lights will turn on again. The lantern comes in a beautiful gift box.