AGPtEK 12x LED Battery Operated Decoration Light Bulb, Wireless in Lantern, Balloon for Wedding, Party, Anniversary, Ceremony. Blue Easy operation: Tightening thread to turn on; Loosening thread to turn off. Battery operated, keep brightening for 1-2 hours. Batteries included, and replaceable by your own. 7 color options for you to random mix(Please contact to leave a note). Perfect decoration for all kinds of Anniversary Celebration, Party, Concert, Wedding, Birthday, Carnival, Christmas day, Halloween, etc.