Winner of the New York Toy Fair Best of Toy award, these are the building blocks that illuminate to create glowing, colorful edifices limited only by a child’s imagination. Each one of the 102 square interlocking blocks has an LED inside that illuminates, creating a structure of luminescent, colorful hues. The LEDs are powered by the included base that illuminates every block in a structure through patented connections in each block. Children can construct their own night light, build a glowing robot, or construct a luminescent house with the easy-to-assemble blocks. Creations can be set to illuminate constantly, remain lit for 15 minutes, flash, and fade in and out for subtle colorful transitions. Base is powered by the included USB cable or the three (required) AAA batteries. Ages 3 and up. (1 2/3 lbs.)