Light Up Mardi Gras Beads are not just for Mardi Gras anymore! Our super bright Green, Red or Blue LED Beaded Necklaces are fun for all kinds of holidays with any color scheme. Our light up beads are fun for any event day to night. Each set of beads comes with 3 x AG13 batteries included and installed. Choose from fast flash, slow flash and steady on when you click the on/off button.