The Ultimate Light Show Building Set includes 28 LED bricks and 3 control plates for creating interactive light-up structures. The control plates feature three modes: brightness and fade effects, sound activation, and color-changing LEDs. When layered in sequence, they enhance the lighting effects. The set contains 37 pieces, including LED bricks in yellow, purple, green, brown, orange, red, and clear, all illuminated by white LEDs. The battery-powered base (requires 3 AA batteries, not included) supports stacking the control plates and free building on the included base grid. Designed for ages 5 and up, the set introduces basic circuitry and sensory feedback while encouraging creativity. The bricks are compatible with DUPLO systems for expanded building options.