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These lights are reminiscent of the game of Tetris. It is a well-known game and very popular too! I love playing Tetris on my iPhone even after all these years of playing it. This is a light/lamp that is shaped like the game and will add a nice colorful glow to any room. I think these lights would look especially cool in a game room if you have a bunch of oldschool video game machines it would just add to the ambiance.
Image Source: http://www.thisiswhyimbroke.com/tetris-lights