Light Stax Advanced Building Blocks (Set Of 36)

4 light modes always?Light Stax are LED building blocks that light up when attached to their power generating base. They glow in either solid, flashing or fading light and what's really cool is that once a block is on the base, any block connected to that one will also glow. They look awesome and would make a super creative night light! Light Stax are compatible with other traditional building blocks on the market and are really beneficial for your child's development in creativity, mathematics, language, and even science. Light Stax impressed Popular Science at this year's American International Toy Fair in New York. Popular Science saw them and named them one of the 10 best toys from the fair??? on flashing fading 15min auto-off