Use the laserpegs ac adaptor to power your creative illuminated designs and characters without relying on batteries batteries are great for powering up your laser pegs designs but the more laser pegs you use the duller their glow can become as they share the battery power not so with the ac power adaptor the ac power adaptor kit contains a laser peg power base a power cord and a 45 volt mains adaptor so that you can illuminate up to 100 laser pegs allowing you to light up your creations ag