The Tetris desk lamp is the perfect gift for fans of the ever-popular Tetris®™ video game. Once the blue Tetrimino is plugged in and illuminated, the other Tetriminos can be added in endless combinations. As soon as each Tetrimino comes into contact with one already illuminated, it too will light up. Remove it from the rest of the Tetris™ Light and it immediately turns off. There are countless ways the Tetris™ Light can be stacked, just put your Tetris™ gaming skills to the test. The Tetris™ Light contains seven individual Tetrimino lights and an AC adaptor.