Ikea STR&Aring;LA LED lantern, Battery Operated (White) Use in a window or on a table for a warm, cozy glow in your home. The LED light source consumes up to 85% less energy and lasts 20 times longer than incandescent bulbs. Batteries are sold separately, 2 pcs HR6/LR6 AA 1.5V required. For indoor use.