This lamp is an amazing lamp with 7 different colored, interlocking Tetromino pieces that can be stacked in any combination, so you can make them look the way you want! FEATURES: -DECORATIVE LIGHTS – 7 different colors of neon magic design. Each piece is a unique color. LED light turns on when the pieces are stacked together; the light turns off when take it apart. -COMBINATIONS & DIY TOY – The magic block can be assembled interlock led module arbitrarily. An awesome decorative lamp, as well as a good toy for stackable fans and children. You can DIY decor for your lights, assembled into different shapes. -BEST GIFT FOR FRIENDS & FAMILY – It would the perfect decor light for your home. Ideal Gift for birthday Valentine’s Day Halloween and Christmas decorations and so on. -AUTOMATIC LIGHTING – When the block lamps are stacked together, the led lighting; When the block disassembly, the light turn off. As long as the main block is connected to power/turn on, other blocks can be lighting when accumulate.